Home / 38,454.98-57,682.08-12,159.72

Finding the Fourth Proportional to 38,454.98, 57,682.08 and 12,159.72

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Solution

The fourth proportional to 38,454.98, 57,682.08 and 12,159.72 is: 18,239.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,454.98 : 57,682.08 = 12,159.72 : x
  2. Step 2: Convert to fraction form
    38,454.98/57,682.08 = 12,159.72/x
  3. Step 3: Cross multiply
    38,454.98x = 57,682.08 × 12,159.72
  4. Step 4: Simplify right side
    38,454.98x = 701,397,941.82
  5. Step 5: Solve for x
    x = 701,397,941.82/38,454.98
  6. Step 6: Final answer
    x = 18,239.46

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Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.