Home / 38,478.15-57,709.92-13,512.33

Finding the Fourth Proportional to 38,478.15, 57,709.92 and 13,512.33

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Solution

The fourth proportional to 38,478.15, 57,709.92 and 13,512.33 is: 20,265.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,478.15 : 57,709.92 = 13,512.33 : x
  2. Step 2: Convert to fraction form
    38,478.15/57,709.92 = 13,512.33/x
  3. Step 3: Cross multiply
    38,478.15x = 57,709.92 × 13,512.33
  4. Step 4: Simplify right side
    38,478.15x = 779,795,483.31
  5. Step 5: Solve for x
    x = 779,795,483.31/38,478.15
  6. Step 6: Final answer
    x = 20,265.93

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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.