Home / 31,340.47-47,010.72-11,595.91

Finding the Fourth Proportional to 31,340.47, 47,010.72 and 11,595.91

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Solution

The fourth proportional to 31,340.47, 47,010.72 and 11,595.91 is: 17,393.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,340.47 : 47,010.72 = 11,595.91 : x
  2. Step 2: Convert to fraction form
    31,340.47/47,010.72 = 11,595.91/x
  3. Step 3: Cross multiply
    31,340.47x = 47,010.72 × 11,595.91
  4. Step 4: Simplify right side
    31,340.47x = 545,132,078.16
  5. Step 5: Solve for x
    x = 545,132,078.16/31,340.47
  6. Step 6: Final answer
    x = 17,393.87

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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.