Home / 31,650.74-47,479.36-11,945.88

Finding the Fourth Proportional to 31,650.74, 47,479.36 and 11,945.88

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Solution

The fourth proportional to 31,650.74, 47,479.36 and 11,945.88 is: 17,920.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,650.74 : 47,479.36 = 11,945.88 : x
  2. Step 2: Convert to fraction form
    31,650.74/47,479.36 = 11,945.88/x
  3. Step 3: Cross multiply
    31,650.74x = 47,479.36 × 11,945.88
  4. Step 4: Simplify right side
    31,650.74x = 567,182,737.04
  5. Step 5: Solve for x
    x = 567,182,737.04/31,650.74
  6. Step 6: Final answer
    x = 17,920.05

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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.