Home / 31,103.13-42,922.32-17,674.39

Finding the Fourth Proportional to 31,103.13, 42,922.32 and 17,674.39

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Solution

The fourth proportional to 31,103.13, 42,922.32 and 17,674.39 is: 24,390.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,103.13 : 42,922.32 = 17,674.39 : x
  2. Step 2: Convert to fraction form
    31,103.13/42,922.32 = 17,674.39/x
  3. Step 3: Cross multiply
    31,103.13x = 42,922.32 × 17,674.39
  4. Step 4: Simplify right side
    31,103.13x = 758,625,823.38
  5. Step 5: Solve for x
    x = 758,625,823.38/31,103.13
  6. Step 6: Final answer
    x = 24,390.66

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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.