Home / 22,215.91-30,657.88-12,144.35

Finding the Fourth Proportional to 22,215.91, 30,657.88 and 12,144.35

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Solution

The fourth proportional to 22,215.91, 30,657.88 and 12,144.35 is: 16,759.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,215.91 : 30,657.88 = 12,144.35 : x
  2. Step 2: Convert to fraction form
    22,215.91/30,657.88 = 12,144.35/x
  3. Step 3: Cross multiply
    22,215.91x = 30,657.88 × 12,144.35
  4. Step 4: Simplify right side
    22,215.91x = 372,319,964.26
  5. Step 5: Solve for x
    x = 372,319,964.26/22,215.91
  6. Step 6: Final answer
    x = 16,759.16

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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.