Home / 28,311.19-42,467.75-7,534.71

Finding the Fourth Proportional to 28,311.19, 42,467.75 and 7,534.71

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Solution

The fourth proportional to 28,311.19, 42,467.75 and 7,534.71 is: 11,302.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,311.19 : 42,467.75 = 7,534.71 : x
  2. Step 2: Convert to fraction form
    28,311.19/42,467.75 = 7,534.71/x
  3. Step 3: Cross multiply
    28,311.19x = 42,467.75 × 7,534.71
  4. Step 4: Simplify right side
    28,311.19x = 319,982,180.60
  5. Step 5: Solve for x
    x = 319,982,180.60/28,311.19
  6. Step 6: Final answer
    x = 11,302.32

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.