Home / 38,895.20-58,371.60-15,538.40

Finding the Fourth Proportional to 38,895.20, 58,371.60 and 15,538.40

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Solution

The fourth proportional to 38,895.20, 58,371.60 and 15,538.40 is: 23,319.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,895.20 : 58,371.60 = 15,538.40 : x
  2. Step 2: Convert to fraction form
    38,895.20/58,371.60 = 15,538.40/x
  3. Step 3: Cross multiply
    38,895.20x = 58,371.60 × 15,538.40
  4. Step 4: Simplify right side
    38,895.20x = 907,001,269.44
  5. Step 5: Solve for x
    x = 907,001,269.44/38,895.20
  6. Step 6: Final answer
    x = 23,319.11

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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.