Home / 21,244.76-31,867.12-10,117.71

Finding the Fourth Proportional to 21,244.76, 31,867.12 and 10,117.71

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Solution

The fourth proportional to 21,244.76, 31,867.12 and 10,117.71 is: 15,176.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,244.76 : 31,867.12 = 10,117.71 : x
  2. Step 2: Convert to fraction form
    21,244.76/31,867.12 = 10,117.71/x
  3. Step 3: Cross multiply
    21,244.76x = 31,867.12 × 10,117.71
  4. Step 4: Simplify right side
    21,244.76x = 322,422,278.70
  5. Step 5: Solve for x
    x = 322,422,278.70/21,244.76
  6. Step 6: Final answer
    x = 15,176.56

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1.5x scale

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.