Home / 38,965.11-58,454.55-12,665.22

Finding the Fourth Proportional to 38,965.11, 58,454.55 and 12,665.22

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Solution

The fourth proportional to 38,965.11, 58,454.55 and 12,665.22 is: 19,000.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,965.11 : 58,454.55 = 12,665.22 : x
  2. Step 2: Convert to fraction form
    38,965.11/58,454.55 = 12,665.22/x
  3. Step 3: Cross multiply
    38,965.11x = 58,454.55 × 12,665.22
  4. Step 4: Simplify right side
    38,965.11x = 740,339,735.75
  5. Step 5: Solve for x
    x = 740,339,735.75/38,965.11
  6. Step 6: Final answer
    x = 19,000.07

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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.