Home / 42,367.38-63,509.73-20,174.78

Finding the Fourth Proportional to 42,367.38, 63,509.73 and 20,174.78

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Solution

The fourth proportional to 42,367.38, 63,509.73 and 20,174.78 is: 30,242.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,367.38 : 63,509.73 = 20,174.78 : x
  2. Step 2: Convert to fraction form
    42,367.38/63,509.73 = 20,174.78/x
  3. Step 3: Cross multiply
    42,367.38x = 63,509.73 × 20,174.78
  4. Step 4: Simplify right side
    42,367.38x = 1,281,294,830.61
  5. Step 5: Solve for x
    x = 1,281,294,830.61/42,367.38
  6. Step 6: Final answer
    x = 30,242.48

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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.