Home / 42,008.76-63,025.43-12,427.38

Finding the Fourth Proportional to 42,008.76, 63,025.43 and 12,427.38

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Solution

The fourth proportional to 42,008.76, 63,025.43 and 12,427.38 is: 18,644.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,008.76 : 63,025.43 = 12,427.38 : x
  2. Step 2: Convert to fraction form
    42,008.76/63,025.43 = 12,427.38/x
  3. Step 3: Cross multiply
    42,008.76x = 63,025.43 × 12,427.38
  4. Step 4: Simplify right side
    42,008.76x = 783,240,968.27
  5. Step 5: Solve for x
    x = 783,240,968.27/42,008.76
  6. Step 6: Final answer
    x = 18,644.71

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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.