Home / 25,205.31-37,704.02-20,712.38

Finding the Fourth Proportional to 25,205.31, 37,704.02 and 20,712.38

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Solution

The fourth proportional to 25,205.31, 37,704.02 and 20,712.38 is: 30,983.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,205.31 : 37,704.02 = 20,712.38 : x
  2. Step 2: Convert to fraction form
    25,205.31/37,704.02 = 20,712.38/x
  3. Step 3: Cross multiply
    25,205.31x = 37,704.02 × 20,712.38
  4. Step 4: Simplify right side
    25,205.31x = 780,939,697.69
  5. Step 5: Solve for x
    x = 780,939,697.69/25,205.31
  6. Step 6: Final answer
    x = 30,983.14

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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.