Home / 15,920.52-23,881.20-7,601.40

Finding the Fourth Proportional to 15,920.52, 23,881.20 and 7,601.40

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Solution

The fourth proportional to 15,920.52, 23,881.20 and 7,601.40 is: 11,402.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,920.52 : 23,881.20 = 7,601.40 : x
  2. Step 2: Convert to fraction form
    15,920.52/23,881.20 = 7,601.40/x
  3. Step 3: Cross multiply
    15,920.52x = 23,881.20 × 7,601.40
  4. Step 4: Simplify right side
    15,920.52x = 181,530,553.68
  5. Step 5: Solve for x
    x = 181,530,553.68/15,920.52
  6. Step 6: Final answer
    x = 11,402.30

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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.