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Finding the Fourth Proportional to 21,545, 32,318.28 and 6,753.56

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Solution

The fourth proportional to 21,545, 32,318.28 and 6,753.56 is: 10,130.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,545 : 32,318.28 = 6,753.56 : x
  2. Step 2: Convert to fraction form
    21,545/32,318.28 = 6,753.56/x
  3. Step 3: Cross multiply
    21,545x = 32,318.28 × 6,753.56
  4. Step 4: Simplify right side
    21,545x = 218,263,443.08
  5. Step 5: Solve for x
    x = 218,263,443.08/21,545
  6. Step 6: Final answer
    x = 10,130.58

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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.