Home / 28,248.68-38,986.26-16,315.76

Finding the Fourth Proportional to 28,248.68, 38,986.26 and 16,315.76

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Solution

The fourth proportional to 28,248.68, 38,986.26 and 16,315.76 is: 22,517.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,248.68 : 38,986.26 = 16,315.76 : x
  2. Step 2: Convert to fraction form
    28,248.68/38,986.26 = 16,315.76/x
  3. Step 3: Cross multiply
    28,248.68x = 38,986.26 × 16,315.76
  4. Step 4: Simplify right side
    28,248.68x = 636,090,461.46
  5. Step 5: Solve for x
    x = 636,090,461.46/28,248.68
  6. Step 6: Final answer
    x = 22,517.53

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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.