Home / 25,974.16-38,952.40-8,439.64

Finding the Fourth Proportional to 25,974.16, 38,952.40 and 8,439.64

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Solution

The fourth proportional to 25,974.16, 38,952.40 and 8,439.64 is: 12,656.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,974.16 : 38,952.40 = 8,439.64 : x
  2. Step 2: Convert to fraction form
    25,974.16/38,952.40 = 8,439.64/x
  3. Step 3: Cross multiply
    25,974.16x = 38,952.40 × 8,439.64
  4. Step 4: Simplify right side
    25,974.16x = 328,744,233.14
  5. Step 5: Solve for x
    x = 328,744,233.14/25,974.16
  6. Step 6: Final answer
    x = 12,656.59

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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.