Home / 25,115.24-37,679.99-20,479.10

Finding the Fourth Proportional to 25,115.24, 37,679.99 and 20,479.10

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Solution

The fourth proportional to 25,115.24, 37,679.99 and 20,479.10 is: 30,724.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,115.24 : 37,679.99 = 20,479.10 : x
  2. Step 2: Convert to fraction form
    25,115.24/37,679.99 = 20,479.10/x
  3. Step 3: Cross multiply
    25,115.24x = 37,679.99 × 20,479.10
  4. Step 4: Simplify right side
    25,115.24x = 771,651,992.41
  5. Step 5: Solve for x
    x = 771,651,992.41/25,115.24
  6. Step 6: Final answer
    x = 30,724.46

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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.