Home / 31,074.12-42,882.30-16,926.66

Finding the Fourth Proportional to 31,074.12, 42,882.30 and 16,926.66

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Solution

The fourth proportional to 31,074.12, 42,882.30 and 16,926.66 is: 23,358.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,074.12 : 42,882.30 = 16,926.66 : x
  2. Step 2: Convert to fraction form
    31,074.12/42,882.30 = 16,926.66/x
  3. Step 3: Cross multiply
    31,074.12x = 42,882.30 × 16,926.66
  4. Step 4: Simplify right side
    31,074.12x = 725,854,112.12
  5. Step 5: Solve for x
    x = 725,854,112.12/31,074.12
  6. Step 6: Final answer
    x = 23,358.80

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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.