Home / 42,610.30-63,915.45-21,874.30

Finding the Fourth Proportional to 42,610.30, 63,915.45 and 21,874.30

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Solution

The fourth proportional to 42,610.30, 63,915.45 and 21,874.30 is: 32,811.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,610.30 : 63,915.45 = 21,874.30 : x
  2. Step 2: Convert to fraction form
    42,610.30/63,915.45 = 21,874.30/x
  3. Step 3: Cross multiply
    42,610.30x = 63,915.45 × 21,874.30
  4. Step 4: Simplify right side
    42,610.30x = 1,398,105,727.94
  5. Step 5: Solve for x
    x = 1,398,105,727.94/42,610.30
  6. Step 6: Final answer
    x = 32,811.45

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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.