Home / 22,400.54-30,912.50-12,328.76

Finding the Fourth Proportional to 22,400.54, 30,912.50 and 12,328.76

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Solution

The fourth proportional to 22,400.54, 30,912.50 and 12,328.76 is: 17,013.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,400.54 : 30,912.50 = 12,328.76 : x
  2. Step 2: Convert to fraction form
    22,400.54/30,912.50 = 12,328.76/x
  3. Step 3: Cross multiply
    22,400.54x = 30,912.50 × 12,328.76
  4. Step 4: Simplify right side
    22,400.54x = 381,112,814.66
  5. Step 5: Solve for x
    x = 381,112,814.66/22,400.54
  6. Step 6: Final answer
    x = 17,013.56

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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.