Home / 21,617.92-29,834.18-12,186.46

Finding the Fourth Proportional to 21,617.92, 29,834.18 and 12,186.46

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Solution

The fourth proportional to 21,617.92, 29,834.18 and 12,186.46 is: 16,818.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,617.92 : 29,834.18 = 12,186.46 : x
  2. Step 2: Convert to fraction form
    21,617.92/29,834.18 = 12,186.46/x
  3. Step 3: Cross multiply
    21,617.92x = 29,834.18 × 12,186.46
  4. Step 4: Simplify right side
    21,617.92x = 363,573,041.20
  5. Step 5: Solve for x
    x = 363,573,041.20/21,617.92
  6. Step 6: Final answer
    x = 16,818.13

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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.