Home / 21,472.83-32,218.43-11,091.87

Finding the Fourth Proportional to 21,472.83, 32,218.43 and 11,091.87

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Solution

The fourth proportional to 21,472.83, 32,218.43 and 11,091.87 is: 16,642.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,472.83 : 32,218.43 = 11,091.87 : x
  2. Step 2: Convert to fraction form
    21,472.83/32,218.43 = 11,091.87/x
  3. Step 3: Cross multiply
    21,472.83x = 32,218.43 × 11,091.87
  4. Step 4: Simplify right side
    21,472.83x = 357,362,581.70
  5. Step 5: Solve for x
    x = 357,362,581.70/21,472.83
  6. Step 6: Final answer
    x = 16,642.55

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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.