Home / 22,427.40-30,948-12,996.56

Finding the Fourth Proportional to 22,427.40, 30,948 and 12,996.56

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Solution

The fourth proportional to 22,427.40, 30,948 and 12,996.56 is: 17,934.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,427.40 : 30,948 = 12,996.56 : x
  2. Step 2: Convert to fraction form
    22,427.40/30,948 = 12,996.56/x
  3. Step 3: Cross multiply
    22,427.40x = 30,948 × 12,996.56
  4. Step 4: Simplify right side
    22,427.40x = 402,217,538.88
  5. Step 5: Solve for x
    x = 402,217,538.88/22,427.40
  6. Step 6: Final answer
    x = 17,934.20

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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.