Home / 42,120.91-58,127-23,000.89

Finding the Fourth Proportional to 42,120.91, 58,127 and 23,000.89

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Solution

The fourth proportional to 42,120.91, 58,127 and 23,000.89 is: 31,741.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,120.91 : 58,127 = 23,000.89 : x
  2. Step 2: Convert to fraction form
    42,120.91/58,127 = 23,000.89/x
  3. Step 3: Cross multiply
    42,120.91x = 58,127 × 23,000.89
  4. Step 4: Simplify right side
    42,120.91x = 1,336,972,733.03
  5. Step 5: Solve for x
    x = 1,336,972,733.03/42,120.91
  6. Step 6: Final answer
    x = 31,741.31

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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.