Home / 25,900.77-38,851.98-7,179.21

Finding the Fourth Proportional to 25,900.77, 38,851.98 and 7,179.21

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Solution

The fourth proportional to 25,900.77, 38,851.98 and 7,179.21 is: 10,769.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,900.77 : 38,851.98 = 7,179.21 : x
  2. Step 2: Convert to fraction form
    25,900.77/38,851.98 = 7,179.21/x
  3. Step 3: Cross multiply
    25,900.77x = 38,851.98 × 7,179.21
  4. Step 4: Simplify right side
    25,900.77x = 278,926,523.34
  5. Step 5: Solve for x
    x = 278,926,523.34/25,900.77
  6. Step 6: Final answer
    x = 10,769.04

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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.