Home / 34,431.37-47,511.39-19,320.91

Finding the Fourth Proportional to 34,431.37, 47,511.39 and 19,320.91

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Solution

The fourth proportional to 34,431.37, 47,511.39 and 19,320.91 is: 26,660.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    34,431.37 : 47,511.39 = 19,320.91 : x
  2. Step 2: Convert to fraction form
    34,431.37/47,511.39 = 19,320.91/x
  3. Step 3: Cross multiply
    34,431.37x = 47,511.39 × 19,320.91
  4. Step 4: Simplify right side
    34,431.37x = 917,963,290.16
  5. Step 5: Solve for x
    x = 917,963,290.16/34,431.37
  6. Step 6: Final answer
    x = 26,660.67

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Half scale
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Double scale
Find fourth proportional to 34,432.37, 47,512.77 and 19,321.91
Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.