Home / 28,247.68-38,984.88-16,314.76

Finding the Fourth Proportional to 28,247.68, 38,984.88 and 16,314.76

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Solution

The fourth proportional to 28,247.68, 38,984.88 and 16,314.76 is: 22,516.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,247.68 : 38,984.88 = 16,314.76 : x
  2. Step 2: Convert to fraction form
    28,247.68/38,984.88 = 16,314.76/x
  3. Step 3: Cross multiply
    28,247.68x = 38,984.88 × 16,314.76
  4. Step 4: Simplify right side
    28,247.68x = 636,028,960.83
  5. Step 5: Solve for x
    x = 636,028,960.83/28,247.68
  6. Step 6: Final answer
    x = 22,516.15

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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.