Home / 28,757.05-39,681.17-16,657.38

Finding the Fourth Proportional to 28,757.05, 39,681.17 and 16,657.38

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Solution

The fourth proportional to 28,757.05, 39,681.17 and 16,657.38 is: 22,985.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,757.05 : 39,681.17 = 16,657.38 : x
  2. Step 2: Convert to fraction form
    28,757.05/39,681.17 = 16,657.38/x
  3. Step 3: Cross multiply
    28,757.05x = 39,681.17 × 16,657.38
  4. Step 4: Simplify right side
    28,757.05x = 660,984,244.25
  5. Step 5: Solve for x
    x = 660,984,244.25/28,757.05
  6. Step 6: Final answer
    x = 22,985.12

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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.