Home / 38,771.81-58,120.78-12,458.08

Finding the Fourth Proportional to 38,771.81, 58,120.78 and 12,458.08

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Solution

The fourth proportional to 38,771.81, 58,120.78 and 12,458.08 is: 18,675.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,771.81 : 58,120.78 = 12,458.08 : x
  2. Step 2: Convert to fraction form
    38,771.81/58,120.78 = 12,458.08/x
  3. Step 3: Cross multiply
    38,771.81x = 58,120.78 × 12,458.08
  4. Step 4: Simplify right side
    38,771.81x = 724,073,264.61
  5. Step 5: Solve for x
    x = 724,073,264.61/38,771.81
  6. Step 6: Final answer
    x = 18,675.25

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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.