Home / 22,454.32-30,987.20-12,383.20

Finding the Fourth Proportional to 22,454.32, 30,987.20 and 12,383.20

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Solution

The fourth proportional to 22,454.32, 30,987.20 and 12,383.20 is: 17,088.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,454.32 : 30,987.20 = 12,383.20 : x
  2. Step 2: Convert to fraction form
    22,454.32/30,987.20 = 12,383.20/x
  3. Step 3: Cross multiply
    22,454.32x = 30,987.20 × 12,383.20
  4. Step 4: Simplify right side
    22,454.32x = 383,720,695.04
  5. Step 5: Solve for x
    x = 383,720,695.04/22,454.32
  6. Step 6: Final answer
    x = 17,088.95

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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.