Home / 38,378.73-57,484.77-18,615.75

Finding the Fourth Proportional to 38,378.73, 57,484.77 and 18,615.75

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Solution

The fourth proportional to 38,378.73, 57,484.77 and 18,615.75 is: 27,883.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,378.73 : 57,484.77 = 18,615.75 : x
  2. Step 2: Convert to fraction form
    38,378.73/57,484.77 = 18,615.75/x
  3. Step 3: Cross multiply
    38,378.73x = 57,484.77 × 18,615.75
  4. Step 4: Simplify right side
    38,378.73x = 1,070,122,107.13
  5. Step 5: Solve for x
    x = 1,070,122,107.13/38,378.73
  6. Step 6: Final answer
    x = 27,883.21

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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.