Home / 21,472.68-32,218.29-11,618.91

Finding the Fourth Proportional to 21,472.68, 32,218.29 and 11,618.91

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Solution

The fourth proportional to 21,472.68, 32,218.29 and 11,618.91 is: 17,433.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,472.68 : 32,218.29 = 11,618.91 : x
  2. Step 2: Convert to fraction form
    21,472.68/32,218.29 = 11,618.91/x
  3. Step 3: Cross multiply
    21,472.68x = 32,218.29 × 11,618.91
  4. Step 4: Simplify right side
    21,472.68x = 374,341,411.86
  5. Step 5: Solve for x
    x = 374,341,411.86/21,472.68
  6. Step 6: Final answer
    x = 17,433.38

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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.