Home / 20,392.32-28,158-16,616.04

Finding the Fourth Proportional to 20,392.32, 28,158 and 16,616.04

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Solution

The fourth proportional to 20,392.32, 28,158 and 16,616.04 is: 22,943.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,392.32 : 28,158 = 16,616.04 : x
  2. Step 2: Convert to fraction form
    20,392.32/28,158 = 16,616.04/x
  3. Step 3: Cross multiply
    20,392.32x = 28,158 × 16,616.04
  4. Step 4: Simplify right side
    20,392.32x = 467,874,454.32
  5. Step 5: Solve for x
    x = 467,874,454.32/20,392.32
  6. Step 6: Final answer
    x = 22,943.66

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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.