Home / 38,919.24-58,386.15-12,620.56

Finding the Fourth Proportional to 38,919.24, 58,386.15 and 12,620.56

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Solution

The fourth proportional to 38,919.24, 58,386.15 and 12,620.56 is: 18,933.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,919.24 : 58,386.15 = 12,620.56 : x
  2. Step 2: Convert to fraction form
    38,919.24/58,386.15 = 12,620.56/x
  3. Step 3: Cross multiply
    38,919.24x = 58,386.15 × 12,620.56
  4. Step 4: Simplify right side
    38,919.24x = 736,865,909.24
  5. Step 5: Solve for x
    x = 736,865,909.24/38,919.24
  6. Step 6: Final answer
    x = 18,933.20

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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.