Home / 20,757.08-28,641.28-19,706.24

Finding the Fourth Proportional to 20,757.08, 28,641.28 and 19,706.24

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Solution

The fourth proportional to 20,757.08, 28,641.28 and 19,706.24 is: 27,191.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,757.08 : 28,641.28 = 19,706.24 : x
  2. Step 2: Convert to fraction form
    20,757.08/28,641.28 = 19,706.24/x
  3. Step 3: Cross multiply
    20,757.08x = 28,641.28 × 19,706.24
  4. Step 4: Simplify right side
    20,757.08x = 564,411,937.59
  5. Step 5: Solve for x
    x = 564,411,937.59/20,757.08
  6. Step 6: Final answer
    x = 27,191.30

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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.