Home / 22,712.76-31,340.11-14,210.78

Finding the Fourth Proportional to 22,712.76, 31,340.11 and 14,210.78

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Solution

The fourth proportional to 22,712.76, 31,340.11 and 14,210.78 is: 19,608.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,712.76 : 31,340.11 = 14,210.78 : x
  2. Step 2: Convert to fraction form
    22,712.76/31,340.11 = 14,210.78/x
  3. Step 3: Cross multiply
    22,712.76x = 31,340.11 × 14,210.78
  4. Step 4: Simplify right side
    22,712.76x = 445,367,408.39
  5. Step 5: Solve for x
    x = 445,367,408.39/22,712.76
  6. Step 6: Final answer
    x = 19,608.69

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Half scale
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Double scale
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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.