Home / 31,373.33-47,023.49-11,639.30

Finding the Fourth Proportional to 31,373.33, 47,023.49 and 11,639.30

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Solution

The fourth proportional to 31,373.33, 47,023.49 and 11,639.30 is: 17,445.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,373.33 : 47,023.49 = 11,639.30 : x
  2. Step 2: Convert to fraction form
    31,373.33/47,023.49 = 11,639.30/x
  3. Step 3: Cross multiply
    31,373.33x = 47,023.49 × 11,639.30
  4. Step 4: Simplify right side
    31,373.33x = 547,320,301.14
  5. Step 5: Solve for x
    x = 547,320,301.14/31,373.33
  6. Step 6: Final answer
    x = 17,445.40

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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.