Home / 42,601.20-63,901.80-11,011.20

Finding the Fourth Proportional to 42,601.20, 63,901.80 and 11,011.20

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Solution

The fourth proportional to 42,601.20, 63,901.80 and 11,011.20 is: 16,516.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,601.20 : 63,901.80 = 11,011.20 : x
  2. Step 2: Convert to fraction form
    42,601.20/63,901.80 = 11,011.20/x
  3. Step 3: Cross multiply
    42,601.20x = 63,901.80 × 11,011.20
  4. Step 4: Simplify right side
    42,601.20x = 703,635,500.16
  5. Step 5: Solve for x
    x = 703,635,500.16/42,601.20
  6. Step 6: Final answer
    x = 16,516.80

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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.