Home / 42,286.90-63,407.31-21,527.86

Finding the Fourth Proportional to 42,286.90, 63,407.31 and 21,527.86

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Solution

The fourth proportional to 42,286.90, 63,407.31 and 21,527.86 is: 32,280.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,286.90 : 63,407.31 = 21,527.86 : x
  2. Step 2: Convert to fraction form
    42,286.90/63,407.31 = 21,527.86/x
  3. Step 3: Cross multiply
    42,286.90x = 63,407.31 × 21,527.86
  4. Step 4: Simplify right side
    42,286.90x = 1,365,023,692.66
  5. Step 5: Solve for x
    x = 1,365,023,692.66/42,286.90
  6. Step 6: Final answer
    x = 32,280.06

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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.