Home / 28,246.32-38,980.17-16,311.69

Finding the Fourth Proportional to 28,246.32, 38,980.17 and 16,311.69

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Solution

The fourth proportional to 28,246.32, 38,980.17 and 16,311.69 is: 22,510.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,246.32 : 38,980.17 = 16,311.69 : x
  2. Step 2: Convert to fraction form
    28,246.32/38,980.17 = 16,311.69/x
  3. Step 3: Cross multiply
    28,246.32x = 38,980.17 × 16,311.69
  4. Step 4: Simplify right side
    28,246.32x = 635,832,449.19
  5. Step 5: Solve for x
    x = 635,832,449.19/28,246.32
  6. Step 6: Final answer
    x = 22,510.28

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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.