Home / 38,872.78-58,317.66-12,580.18

Finding the Fourth Proportional to 38,872.78, 58,317.66 and 12,580.18

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Solution

The fourth proportional to 38,872.78, 58,317.66 and 12,580.18 is: 18,873.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,872.78 : 58,317.66 = 12,580.18 : x
  2. Step 2: Convert to fraction form
    38,872.78/58,317.66 = 12,580.18/x
  3. Step 3: Cross multiply
    38,872.78x = 58,317.66 × 12,580.18
  4. Step 4: Simplify right side
    38,872.78x = 733,646,659.98
  5. Step 5: Solve for x
    x = 733,646,659.98/38,872.78
  6. Step 6: Final answer
    x = 18,873.02

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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.