Home / 20,733.50-31,100.16-5,151.14

Finding the Fourth Proportional to 20,733.50, 31,100.16 and 5,151.14

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Solution

The fourth proportional to 20,733.50, 31,100.16 and 5,151.14 is: 7,726.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,733.50 : 31,100.16 = 5,151.14 : x
  2. Step 2: Convert to fraction form
    20,733.50/31,100.16 = 5,151.14/x
  3. Step 3: Cross multiply
    20,733.50x = 31,100.16 × 5,151.14
  4. Step 4: Simplify right side
    20,733.50x = 160,201,278.18
  5. Step 5: Solve for x
    x = 160,201,278.18/20,733.50
  6. Step 6: Final answer
    x = 7,726.69

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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.