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Finding the Fourth Proportional to 32,687.80, 45,102.24 and 21,373.84

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Solution

The fourth proportional to 32,687.80, 45,102.24 and 21,373.84 is: 29,491.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    32,687.80 : 45,102.24 = 21,373.84 : x
  2. Step 2: Convert to fraction form
    32,687.80/45,102.24 = 21,373.84/x
  3. Step 3: Cross multiply
    32,687.80x = 45,102.24 × 21,373.84
  4. Step 4: Simplify right side
    32,687.80x = 964,008,061.40
  5. Step 5: Solve for x
    x = 964,008,061.40/32,687.80
  6. Step 6: Final answer
    x = 29,491.37

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.