Home / 28,301.50-39,057.12-16,972.84

Finding the Fourth Proportional to 28,301.50, 39,057.12 and 16,972.84

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Solution

The fourth proportional to 28,301.50, 39,057.12 and 16,972.84 is: 23,423.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,301.50 : 39,057.12 = 16,972.84 : x
  2. Step 2: Convert to fraction form
    28,301.50/39,057.12 = 16,972.84/x
  3. Step 3: Cross multiply
    28,301.50x = 39,057.12 × 16,972.84
  4. Step 4: Simplify right side
    28,301.50x = 662,910,248.62
  5. Step 5: Solve for x
    x = 662,910,248.62/28,301.50
  6. Step 6: Final answer
    x = 23,423.15

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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.