Home / 31,614.36-43,577.14-21,402.17

Finding the Fourth Proportional to 31,614.36, 43,577.14 and 21,402.17

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Solution

The fourth proportional to 31,614.36, 43,577.14 and 21,402.17 is: 29,500.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,614.36 : 43,577.14 = 21,402.17 : x
  2. Step 2: Convert to fraction form
    31,614.36/43,577.14 = 21,402.17/x
  3. Step 3: Cross multiply
    31,614.36x = 43,577.14 × 21,402.17
  4. Step 4: Simplify right side
    31,614.36x = 932,645,358.39
  5. Step 5: Solve for x
    x = 932,645,358.39/31,614.36
  6. Step 6: Final answer
    x = 29,500.69

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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.