Home / 20,598.18-30,901.91-7,272.12

Finding the Fourth Proportional to 20,598.18, 30,901.91 and 7,272.12

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Solution

The fourth proportional to 20,598.18, 30,901.91 and 7,272.12 is: 10,909.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,598.18 : 30,901.91 = 7,272.12 : x
  2. Step 2: Convert to fraction form
    20,598.18/30,901.91 = 7,272.12/x
  3. Step 3: Cross multiply
    20,598.18x = 30,901.91 × 7,272.12
  4. Step 4: Simplify right side
    20,598.18x = 224,722,397.75
  5. Step 5: Solve for x
    x = 224,722,397.75/20,598.18
  6. Step 6: Final answer
    x = 10,909.82

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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.