Home / 25,165.20-37,772.10-12,699.30

Finding the Fourth Proportional to 25,165.20, 37,772.10 and 12,699.30

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Solution

The fourth proportional to 25,165.20, 37,772.10 and 12,699.30 is: 19,061.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,165.20 : 37,772.10 = 12,699.30 : x
  2. Step 2: Convert to fraction form
    25,165.20/37,772.10 = 12,699.30/x
  3. Step 3: Cross multiply
    25,165.20x = 37,772.10 × 12,699.30
  4. Step 4: Simplify right side
    25,165.20x = 479,679,229.53
  5. Step 5: Solve for x
    x = 479,679,229.53/25,165.20
  6. Step 6: Final answer
    x = 19,061.21

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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.