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Finding the Fourth Proportional to 21,164.76, 31,753.08 and 6,373.62

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Solution

The fourth proportional to 21,164.76, 31,753.08 and 6,373.62 is: 9,562.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,164.76 : 31,753.08 = 6,373.62 : x
  2. Step 2: Convert to fraction form
    21,164.76/31,753.08 = 6,373.62/x
  3. Step 3: Cross multiply
    21,164.76x = 31,753.08 × 6,373.62
  4. Step 4: Simplify right side
    21,164.76x = 202,382,065.75
  5. Step 5: Solve for x
    x = 202,382,065.75/21,164.76
  6. Step 6: Final answer
    x = 9,562.22

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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.