Home / 21,723.48-32,591.70-12,483

Finding the Fourth Proportional to 21,723.48, 32,591.70 and 12,483

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Solution

The fourth proportional to 21,723.48, 32,591.70 and 12,483 is: 18,728.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,723.48 : 32,591.70 = 12,483 : x
  2. Step 2: Convert to fraction form
    21,723.48/32,591.70 = 12,483/x
  3. Step 3: Cross multiply
    21,723.48x = 32,591.70 × 12,483
  4. Step 4: Simplify right side
    21,723.48x = 406,842,191.10
  5. Step 5: Solve for x
    x = 406,842,191.10/21,723.48
  6. Step 6: Final answer
    x = 18,728.22

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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.