Home / 25,983.60-38,979.47-8,449.32

Finding the Fourth Proportional to 25,983.60, 38,979.47 and 8,449.32

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Solution

The fourth proportional to 25,983.60, 38,979.47 and 8,449.32 is: 12,675.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,983.60 : 38,979.47 = 8,449.32 : x
  2. Step 2: Convert to fraction form
    25,983.60/38,979.47 = 8,449.32/x
  3. Step 3: Cross multiply
    25,983.60x = 38,979.47 × 8,449.32
  4. Step 4: Simplify right side
    25,983.60x = 329,350,015.46
  5. Step 5: Solve for x
    x = 329,350,015.46/25,983.60
  6. Step 6: Final answer
    x = 12,675.30

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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.