Home / 42,517.20-63,775.80-10,927.20

Finding the Fourth Proportional to 42,517.20, 63,775.80 and 10,927.20

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Solution

The fourth proportional to 42,517.20, 63,775.80 and 10,927.20 is: 16,390.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,517.20 : 63,775.80 = 10,927.20 : x
  2. Step 2: Convert to fraction form
    42,517.20/63,775.80 = 10,927.20/x
  3. Step 3: Cross multiply
    42,517.20x = 63,775.80 × 10,927.20
  4. Step 4: Simplify right side
    42,517.20x = 696,890,921.76
  5. Step 5: Solve for x
    x = 696,890,921.76/42,517.20
  6. Step 6: Final answer
    x = 16,390.80

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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.