Home / 38,479.77-57,725.43-13,515.42

Finding the Fourth Proportional to 38,479.77, 57,725.43 and 13,515.42

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Solution

The fourth proportional to 38,479.77, 57,725.43 and 13,515.42 is: 20,275.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,479.77 : 57,725.43 = 13,515.42 : x
  2. Step 2: Convert to fraction form
    38,479.77/57,725.43 = 13,515.42/x
  3. Step 3: Cross multiply
    38,479.77x = 57,725.43 × 13,515.42
  4. Step 4: Simplify right side
    38,479.77x = 780,183,219.24
  5. Step 5: Solve for x
    x = 780,183,219.24/38,479.77
  6. Step 6: Final answer
    x = 20,275.15

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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.