Home / 18,700.52-28,052.32-13,459.92

Finding the Fourth Proportional to 18,700.52, 28,052.32 and 13,459.92

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Solution

The fourth proportional to 18,700.52, 28,052.32 and 13,459.92 is: 20,190.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,700.52 : 28,052.32 = 13,459.92 : x
  2. Step 2: Convert to fraction form
    18,700.52/28,052.32 = 13,459.92/x
  3. Step 3: Cross multiply
    18,700.52x = 28,052.32 × 13,459.92
  4. Step 4: Simplify right side
    18,700.52x = 377,581,983.01
  5. Step 5: Solve for x
    x = 377,581,983.01/18,700.52
  6. Step 6: Final answer
    x = 20,190.99

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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.