Home / 21,234.17-31,851.27-5,439.26

Finding the Fourth Proportional to 21,234.17, 31,851.27 and 5,439.26

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Solution

The fourth proportional to 21,234.17, 31,851.27 and 5,439.26 is: 8,158.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,234.17 : 31,851.27 = 5,439.26 : x
  2. Step 2: Convert to fraction form
    21,234.17/31,851.27 = 5,439.26/x
  3. Step 3: Cross multiply
    21,234.17x = 31,851.27 × 5,439.26
  4. Step 4: Simplify right side
    21,234.17x = 173,247,338.86
  5. Step 5: Solve for x
    x = 173,247,338.86/21,234.17
  6. Step 6: Final answer
    x = 8,158.89

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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.