Home / 25,478.90-38,179.38-10,679.75

Finding the Fourth Proportional to 25,478.90, 38,179.38 and 10,679.75

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Solution

The fourth proportional to 25,478.90, 38,179.38 and 10,679.75 is: 16,003.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,478.90 : 38,179.38 = 10,679.75 : x
  2. Step 2: Convert to fraction form
    25,478.90/38,179.38 = 10,679.75/x
  3. Step 3: Cross multiply
    25,478.90x = 38,179.38 × 10,679.75
  4. Step 4: Simplify right side
    25,478.90x = 407,746,015.96
  5. Step 5: Solve for x
    x = 407,746,015.96/25,478.90
  6. Step 6: Final answer
    x = 16,003.28

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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.