Home / 22,422.13-30,942.53-12,996.16

Finding the Fourth Proportional to 22,422.13, 30,942.53 and 12,996.16

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Solution

The fourth proportional to 22,422.13, 30,942.53 and 12,996.16 is: 17,934.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,422.13 : 30,942.53 = 12,996.16 : x
  2. Step 2: Convert to fraction form
    22,422.13/30,942.53 = 12,996.16/x
  3. Step 3: Cross multiply
    22,422.13x = 30,942.53 × 12,996.16
  4. Step 4: Simplify right side
    22,422.13x = 402,134,070.68
  5. Step 5: Solve for x
    x = 402,134,070.68/22,422.13
  6. Step 6: Final answer
    x = 17,934.70

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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.