Home / 23,107.93-31,889.37-13,554.67

Finding the Fourth Proportional to 23,107.93, 31,889.37 and 13,554.67

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Solution

The fourth proportional to 23,107.93, 31,889.37 and 13,554.67 is: 18,705.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    23,107.93 : 31,889.37 = 13,554.67 : x
  2. Step 2: Convert to fraction form
    23,107.93/31,889.37 = 13,554.67/x
  3. Step 3: Cross multiply
    23,107.93x = 31,889.37 × 13,554.67
  4. Step 4: Simplify right side
    23,107.93x = 432,249,886.86
  5. Step 5: Solve for x
    x = 432,249,886.86/23,107.93
  6. Step 6: Final answer
    x = 18,705.69

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Half scale
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Double scale
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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.