Home / 22,395.16-30,902.06-13,440.76

Finding the Fourth Proportional to 22,395.16, 30,902.06 and 13,440.76

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Solution

The fourth proportional to 22,395.16, 30,902.06 and 13,440.76 is: 18,546.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,395.16 : 30,902.06 = 13,440.76 : x
  2. Step 2: Convert to fraction form
    22,395.16/30,902.06 = 13,440.76/x
  3. Step 3: Cross multiply
    22,395.16x = 30,902.06 × 13,440.76
  4. Step 4: Simplify right side
    22,395.16x = 415,347,171.97
  5. Step 5: Solve for x
    x = 415,347,171.97/22,395.16
  6. Step 6: Final answer
    x = 18,546.29

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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.