Home / 38,612.20-57,919.38-13,648.72

Finding the Fourth Proportional to 38,612.20, 57,919.38 and 13,648.72

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Solution

The fourth proportional to 38,612.20, 57,919.38 and 13,648.72 is: 20,473.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,612.20 : 57,919.38 = 13,648.72 : x
  2. Step 2: Convert to fraction form
    38,612.20/57,919.38 = 13,648.72/x
  3. Step 3: Cross multiply
    38,612.20x = 57,919.38 × 13,648.72
  4. Step 4: Simplify right side
    38,612.20x = 790,525,400.19
  5. Step 5: Solve for x
    x = 790,525,400.19/38,612.20
  6. Step 6: Final answer
    x = 20,473.46

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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.