Home / 25,986.30-38,979.45-9,348.90

Finding the Fourth Proportional to 25,986.30, 38,979.45 and 9,348.90

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Solution

The fourth proportional to 25,986.30, 38,979.45 and 9,348.90 is: 14,023.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,986.30 : 38,979.45 = 9,348.90 : x
  2. Step 2: Convert to fraction form
    25,986.30/38,979.45 = 9,348.90/x
  3. Step 3: Cross multiply
    25,986.30x = 38,979.45 × 9,348.90
  4. Step 4: Simplify right side
    25,986.30x = 364,414,980.11
  5. Step 5: Solve for x
    x = 364,414,980.11/25,986.30
  6. Step 6: Final answer
    x = 14,023.35

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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.