Home / 28,299.09-39,052.61-15,553.07

Finding the Fourth Proportional to 28,299.09, 39,052.61 and 15,553.07

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Solution

The fourth proportional to 28,299.09, 39,052.61 and 15,553.07 is: 21,463.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,299.09 : 39,052.61 = 15,553.07 : x
  2. Step 2: Convert to fraction form
    28,299.09/39,052.61 = 15,553.07/x
  3. Step 3: Cross multiply
    28,299.09x = 39,052.61 × 15,553.07
  4. Step 4: Simplify right side
    28,299.09x = 607,387,703.98
  5. Step 5: Solve for x
    x = 607,387,703.98/28,299.09
  6. Step 6: Final answer
    x = 21,463.15

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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.