Home / 25,172.20-37,769.10-12,860.20

Finding the Fourth Proportional to 25,172.20, 37,769.10 and 12,860.20

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Solution

The fourth proportional to 25,172.20, 37,769.10 and 12,860.20 is: 19,295.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,172.20 : 37,769.10 = 12,860.20 : x
  2. Step 2: Convert to fraction form
    25,172.20/37,769.10 = 12,860.20/x
  3. Step 3: Cross multiply
    25,172.20x = 37,769.10 × 12,860.20
  4. Step 4: Simplify right side
    25,172.20x = 485,718,179.82
  5. Step 5: Solve for x
    x = 485,718,179.82/25,172.20
  6. Step 6: Final answer
    x = 19,295.82

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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.