Home / 42,042.38-58,018.48-23,180.72

Finding the Fourth Proportional to 42,042.38, 58,018.48 and 23,180.72

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Solution

The fourth proportional to 42,042.38, 58,018.48 and 23,180.72 is: 31,989.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,042.38 : 58,018.48 = 23,180.72 : x
  2. Step 2: Convert to fraction form
    42,042.38/58,018.48 = 23,180.72/x
  3. Step 3: Cross multiply
    42,042.38x = 58,018.48 × 23,180.72
  4. Step 4: Simplify right side
    42,042.38x = 1,344,909,791.66
  5. Step 5: Solve for x
    x = 1,344,909,791.66/42,042.38
  6. Step 6: Final answer
    x = 31,989.39

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Half scale
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Double scale
Find fourth proportional to 42,043.38, 58,019.86 and 23,181.72
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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.