Home / 38,815.60-58,235.71-13,855.10

Finding the Fourth Proportional to 38,815.60, 58,235.71 and 13,855.10

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Solution

The fourth proportional to 38,815.60, 58,235.71 and 13,855.10 is: 20,787.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,815.60 : 58,235.71 = 13,855.10 : x
  2. Step 2: Convert to fraction form
    38,815.60/58,235.71 = 13,855.10/x
  3. Step 3: Cross multiply
    38,815.60x = 58,235.71 × 13,855.10
  4. Step 4: Simplify right side
    38,815.60x = 806,861,585.62
  5. Step 5: Solve for x
    x = 806,861,585.62/38,815.60
  6. Step 6: Final answer
    x = 20,787.04

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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.