Home / 20,916.29-31,374.46-5,333.92

Finding the Fourth Proportional to 20,916.29, 31,374.46 and 5,333.92

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Solution

The fourth proportional to 20,916.29, 31,374.46 and 5,333.92 is: 8,000.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,916.29 : 31,374.46 = 5,333.92 : x
  2. Step 2: Convert to fraction form
    20,916.29/31,374.46 = 5,333.92/x
  3. Step 3: Cross multiply
    20,916.29x = 31,374.46 × 5,333.92
  4. Step 4: Simplify right side
    20,916.29x = 167,348,757.91
  5. Step 5: Solve for x
    x = 167,348,757.91/20,916.29
  6. Step 6: Final answer
    x = 8,000.88

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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.