Home / 25,718.62-38,577.52-8,188.20

Finding the Fourth Proportional to 25,718.62, 38,577.52 and 8,188.20

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Solution

The fourth proportional to 25,718.62, 38,577.52 and 8,188.20 is: 12,282.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,718.62 : 38,577.52 = 8,188.20 : x
  2. Step 2: Convert to fraction form
    25,718.62/38,577.52 = 8,188.20/x
  3. Step 3: Cross multiply
    25,718.62x = 38,577.52 × 8,188.20
  4. Step 4: Simplify right side
    25,718.62x = 315,880,449.26
  5. Step 5: Solve for x
    x = 315,880,449.26/25,718.62
  6. Step 6: Final answer
    x = 12,282.17

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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.