Home / 25,448.08-38,178.20-10,648.72

Finding the Fourth Proportional to 25,448.08, 38,178.20 and 10,648.72

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Solution

The fourth proportional to 25,448.08, 38,178.20 and 10,648.72 is: 15,975.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,448.08 : 38,178.20 = 10,648.72 : x
  2. Step 2: Convert to fraction form
    25,448.08/38,178.20 = 10,648.72/x
  3. Step 3: Cross multiply
    25,448.08x = 38,178.20 × 10,648.72
  4. Step 4: Simplify right side
    25,448.08x = 406,548,961.90
  5. Step 5: Solve for x
    x = 406,548,961.90/25,448.08
  6. Step 6: Final answer
    x = 15,975.62

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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.