Home / 21,350.70-32,004.45-12,581.10

Finding the Fourth Proportional to 21,350.70, 32,004.45 and 12,581.10

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Solution

The fourth proportional to 21,350.70, 32,004.45 and 12,581.10 is: 18,858.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,350.70 : 32,004.45 = 12,581.10 : x
  2. Step 2: Convert to fraction form
    21,350.70/32,004.45 = 12,581.10/x
  3. Step 3: Cross multiply
    21,350.70x = 32,004.45 × 12,581.10
  4. Step 4: Simplify right side
    21,350.70x = 402,651,185.90
  5. Step 5: Solve for x
    x = 402,651,185.90/21,350.70
  6. Step 6: Final answer
    x = 18,858.92

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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.