Home / 36,427.38-54,627.90-12,728.28

Finding the Fourth Proportional to 36,427.38, 54,627.90 and 12,728.28

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Solution

The fourth proportional to 36,427.38, 54,627.90 and 12,728.28 is: 19,087.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    36,427.38 : 54,627.90 = 12,728.28 : x
  2. Step 2: Convert to fraction form
    36,427.38/54,627.90 = 12,728.28/x
  3. Step 3: Cross multiply
    36,427.38x = 54,627.90 × 12,728.28
  4. Step 4: Simplify right side
    36,427.38x = 695,319,207.01
  5. Step 5: Solve for x
    x = 695,319,207.01/36,427.38
  6. Step 6: Final answer
    x = 19,087.82

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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.