Home / 42,120.30-58,128.38-23,001.85

Finding the Fourth Proportional to 42,120.30, 58,128.38 and 23,001.85

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Solution

The fourth proportional to 42,120.30, 58,128.38 and 23,001.85 is: 31,743.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,120.30 : 58,128.38 = 23,001.85 : x
  2. Step 2: Convert to fraction form
    42,120.30/58,128.38 = 23,001.85/x
  3. Step 3: Cross multiply
    42,120.30x = 58,128.38 × 23,001.85
  4. Step 4: Simplify right side
    42,120.30x = 1,337,060,017.17
  5. Step 5: Solve for x
    x = 1,337,060,017.17/42,120.30
  6. Step 6: Final answer
    x = 31,743.84

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.