Home / 28,887.30-39,864.53-17,553.78

Finding the Fourth Proportional to 28,887.30, 39,864.53 and 17,553.78

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Solution

The fourth proportional to 28,887.30, 39,864.53 and 17,553.78 is: 24,224.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,887.30 : 39,864.53 = 17,553.78 : x
  2. Step 2: Convert to fraction form
    28,887.30/39,864.53 = 17,553.78/x
  3. Step 3: Cross multiply
    28,887.30x = 39,864.53 × 17,553.78
  4. Step 4: Simplify right side
    28,887.30x = 699,773,101.65
  5. Step 5: Solve for x
    x = 699,773,101.65/28,887.30
  6. Step 6: Final answer
    x = 24,224.25

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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.