Home / 20,287.68-30,387.02-16,737.75

Finding the Fourth Proportional to 20,287.68, 30,387.02 and 16,737.75

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Solution

The fourth proportional to 20,287.68, 30,387.02 and 16,737.75 is: 25,069.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,287.68 : 30,387.02 = 16,737.75 : x
  2. Step 2: Convert to fraction form
    20,287.68/30,387.02 = 16,737.75/x
  3. Step 3: Cross multiply
    20,287.68x = 30,387.02 × 16,737.75
  4. Step 4: Simplify right side
    20,287.68x = 508,610,260.32
  5. Step 5: Solve for x
    x = 508,610,260.32/20,287.68
  6. Step 6: Final answer
    x = 25,069.91

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.