Home / 25,040.31-37,561.68-20,649.75

Finding the Fourth Proportional to 25,040.31, 37,561.68 and 20,649.75

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Solution

The fourth proportional to 25,040.31, 37,561.68 and 20,649.75 is: 30,975.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,040.31 : 37,561.68 = 20,649.75 : x
  2. Step 2: Convert to fraction form
    25,040.31/37,561.68 = 20,649.75/x
  3. Step 3: Cross multiply
    25,040.31x = 37,561.68 × 20,649.75
  4. Step 4: Simplify right side
    25,040.31x = 775,639,301.58
  5. Step 5: Solve for x
    x = 775,639,301.58/25,040.31
  6. Step 6: Final answer
    x = 30,975.63

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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.