Home / 31,267.76-43,148.76-17,121.20

Finding the Fourth Proportional to 31,267.76, 43,148.76 and 17,121.20

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Solution

The fourth proportional to 31,267.76, 43,148.76 and 17,121.20 is: 23,626.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,267.76 : 43,148.76 = 17,121.20 : x
  2. Step 2: Convert to fraction form
    31,267.76/43,148.76 = 17,121.20/x
  3. Step 3: Cross multiply
    31,267.76x = 43,148.76 × 17,121.20
  4. Step 4: Simplify right side
    31,267.76x = 738,758,549.71
  5. Step 5: Solve for x
    x = 738,758,549.71/31,267.76
  6. Step 6: Final answer
    x = 23,626.85

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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.