Home / 25,247.28-37,920.13-20,570.75

Finding the Fourth Proportional to 25,247.28, 37,920.13 and 20,570.75

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Solution

The fourth proportional to 25,247.28, 37,920.13 and 20,570.75 is: 30,896.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,247.28 : 37,920.13 = 20,570.75 : x
  2. Step 2: Convert to fraction form
    25,247.28/37,920.13 = 20,570.75/x
  3. Step 3: Cross multiply
    25,247.28x = 37,920.13 × 20,570.75
  4. Step 4: Simplify right side
    25,247.28x = 780,045,514.20
  5. Step 5: Solve for x
    x = 780,045,514.20/25,247.28
  6. Step 6: Final answer
    x = 30,896.22

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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.