Home / 31,363.52-43,301.18-21,800.39

Finding the Fourth Proportional to 31,363.52, 43,301.18 and 21,800.39

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Solution

The fourth proportional to 31,363.52, 43,301.18 and 21,800.39 is: 30,098.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,363.52 : 43,301.18 = 21,800.39 : x
  2. Step 2: Convert to fraction form
    31,363.52/43,301.18 = 21,800.39/x
  3. Step 3: Cross multiply
    31,363.52x = 43,301.18 × 21,800.39
  4. Step 4: Simplify right side
    31,363.52x = 943,982,610.71
  5. Step 5: Solve for x
    x = 943,982,610.71/31,363.52
  6. Step 6: Final answer
    x = 30,098.11

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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.