Home / 38,919.56-58,379.40-10,839.70

Finding the Fourth Proportional to 38,919.56, 58,379.40 and 10,839.70

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Solution

The fourth proportional to 38,919.56, 58,379.40 and 10,839.70 is: 16,259.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,919.56 : 58,379.40 = 10,839.70 : x
  2. Step 2: Convert to fraction form
    38,919.56/58,379.40 = 10,839.70/x
  3. Step 3: Cross multiply
    38,919.56x = 58,379.40 × 10,839.70
  4. Step 4: Simplify right side
    38,919.56x = 632,815,090.96
  5. Step 5: Solve for x
    x = 632,815,090.96/38,919.56
  6. Step 6: Final answer
    x = 16,259.56

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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.