Home / 25,772.40-38,664.68-8,242.38

Finding the Fourth Proportional to 25,772.40, 38,664.68 and 8,242.38

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Solution

The fourth proportional to 25,772.40, 38,664.68 and 8,242.38 is: 12,365.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,772.40 : 38,664.68 = 8,242.38 : x
  2. Step 2: Convert to fraction form
    25,772.40/38,664.68 = 8,242.38/x
  3. Step 3: Cross multiply
    25,772.40x = 38,664.68 × 8,242.38
  4. Step 4: Simplify right side
    25,772.40x = 318,688,943.93
  5. Step 5: Solve for x
    x = 318,688,943.93/25,772.40
  6. Step 6: Final answer
    x = 12,365.51

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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.