Home / 21,332.25-31,998.54-13,983.24

Finding the Fourth Proportional to 21,332.25, 31,998.54 and 13,983.24

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Solution

The fourth proportional to 21,332.25, 31,998.54 and 13,983.24 is: 20,974.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,332.25 : 31,998.54 = 13,983.24 : x
  2. Step 2: Convert to fraction form
    21,332.25/31,998.54 = 13,983.24/x
  3. Step 3: Cross multiply
    21,332.25x = 31,998.54 × 13,983.24
  4. Step 4: Simplify right side
    21,332.25x = 447,443,264.47
  5. Step 5: Solve for x
    x = 447,443,264.47/21,332.25
  6. Step 6: Final answer
    x = 20,974.97

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1.5x scale

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.