Home / 25,128.77-37,685.15-8,257.87

Finding the Fourth Proportional to 25,128.77, 37,685.15 and 8,257.87

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Solution

The fourth proportional to 25,128.77, 37,685.15 and 8,257.87 is: 12,384.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,128.77 : 37,685.15 = 8,257.87 : x
  2. Step 2: Convert to fraction form
    25,128.77/37,685.15 = 8,257.87/x
  3. Step 3: Cross multiply
    25,128.77x = 37,685.15 × 8,257.87
  4. Step 4: Simplify right side
    25,128.77x = 311,198,881.20
  5. Step 5: Solve for x
    x = 311,198,881.20/25,128.77
  6. Step 6: Final answer
    x = 12,384.17

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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.