Home / 25,621.62-38,449.53-8,981.64

Finding the Fourth Proportional to 25,621.62, 38,449.53 and 8,981.64

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Solution

The fourth proportional to 25,621.62, 38,449.53 and 8,981.64 is: 13,478.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,621.62 : 38,449.53 = 8,981.64 : x
  2. Step 2: Convert to fraction form
    25,621.62/38,449.53 = 8,981.64/x
  3. Step 3: Cross multiply
    25,621.62x = 38,449.53 × 8,981.64
  4. Step 4: Simplify right side
    25,621.62x = 345,339,836.63
  5. Step 5: Solve for x
    x = 345,339,836.63/25,621.62
  6. Step 6: Final answer
    x = 13,478.45

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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.