Home / 22,423.26-30,947.74-12,997.28

Finding the Fourth Proportional to 22,423.26, 30,947.74 and 12,997.28

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Solution

The fourth proportional to 22,423.26, 30,947.74 and 12,997.28 is: 17,938.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,423.26 : 30,947.74 = 12,997.28 : x
  2. Step 2: Convert to fraction form
    22,423.26/30,947.74 = 12,997.28/x
  3. Step 3: Cross multiply
    22,423.26x = 30,947.74 × 12,997.28
  4. Step 4: Simplify right side
    22,423.26x = 402,236,442.15
  5. Step 5: Solve for x
    x = 402,236,442.15/22,423.26
  6. Step 6: Final answer
    x = 17,938.36

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Double scale
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Similar ratio
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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.