Home / 42,600.30-63,900.45-21,864.30

Finding the Fourth Proportional to 42,600.30, 63,900.45 and 21,864.30

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Solution

The fourth proportional to 42,600.30, 63,900.45 and 21,864.30 is: 32,796.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,600.30 : 63,900.45 = 21,864.30 : x
  2. Step 2: Convert to fraction form
    42,600.30/63,900.45 = 21,864.30/x
  3. Step 3: Cross multiply
    42,600.30x = 63,900.45 × 21,864.30
  4. Step 4: Simplify right side
    42,600.30x = 1,397,138,608.94
  5. Step 5: Solve for x
    x = 1,397,138,608.94/42,600.30
  6. Step 6: Final answer
    x = 32,796.45

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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.