Home / 25,877.85-38,816.47-18,247.71

Finding the Fourth Proportional to 25,877.85, 38,816.47 and 18,247.71

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Solution

The fourth proportional to 25,877.85, 38,816.47 and 18,247.71 is: 27,371.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,877.85 : 38,816.47 = 18,247.71 : x
  2. Step 2: Convert to fraction form
    25,877.85/38,816.47 = 18,247.71/x
  3. Step 3: Cross multiply
    25,877.85x = 38,816.47 × 18,247.71
  4. Step 4: Simplify right side
    25,877.85x = 708,311,687.78
  5. Step 5: Solve for x
    x = 708,311,687.78/25,877.85
  6. Step 6: Final answer
    x = 27,371.35

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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.