Home / 25,643.08-38,469.30-8,117.80

Finding the Fourth Proportional to 25,643.08, 38,469.30 and 8,117.80

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Solution

The fourth proportional to 25,643.08, 38,469.30 and 8,117.80 is: 12,178.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,643.08 : 38,469.30 = 8,117.80 : x
  2. Step 2: Convert to fraction form
    25,643.08/38,469.30 = 8,117.80/x
  3. Step 3: Cross multiply
    25,643.08x = 38,469.30 × 8,117.80
  4. Step 4: Simplify right side
    25,643.08x = 312,286,083.54
  5. Step 5: Solve for x
    x = 312,286,083.54/25,643.08
  6. Step 6: Final answer
    x = 12,178.18

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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.