Home / 28,374.68-39,167.76-22,309.10

Finding the Fourth Proportional to 28,374.68, 39,167.76 and 22,309.10

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Solution

The fourth proportional to 28,374.68, 39,167.76 and 22,309.10 is: 30,794.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,374.68 : 39,167.76 = 22,309.10 : x
  2. Step 2: Convert to fraction form
    28,374.68/39,167.76 = 22,309.10/x
  3. Step 3: Cross multiply
    28,374.68x = 39,167.76 × 22,309.10
  4. Step 4: Simplify right side
    28,374.68x = 873,797,474.62
  5. Step 5: Solve for x
    x = 873,797,474.62/28,374.68
  6. Step 6: Final answer
    x = 30,794.97

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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.