Home / 21,248.76-31,877.46-7,398.84

Finding the Fourth Proportional to 21,248.76, 31,877.46 and 7,398.84

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Solution

The fourth proportional to 21,248.76, 31,877.46 and 7,398.84 is: 11,099.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,248.76 : 31,877.46 = 7,398.84 : x
  2. Step 2: Convert to fraction form
    21,248.76/31,877.46 = 7,398.84/x
  3. Step 3: Cross multiply
    21,248.76x = 31,877.46 × 7,398.84
  4. Step 4: Simplify right side
    21,248.76x = 235,856,226.15
  5. Step 5: Solve for x
    x = 235,856,226.15/21,248.76
  6. Step 6: Final answer
    x = 11,099.76

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.