Home / 25,418.80-38,151.54-12,947.68

Finding the Fourth Proportional to 25,418.80, 38,151.54 and 12,947.68

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Solution

The fourth proportional to 25,418.80, 38,151.54 and 12,947.68 is: 19,433.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,418.80 : 38,151.54 = 12,947.68 : x
  2. Step 2: Convert to fraction form
    25,418.80/38,151.54 = 12,947.68/x
  3. Step 3: Cross multiply
    25,418.80x = 38,151.54 × 12,947.68
  4. Step 4: Simplify right side
    25,418.80x = 493,973,931.43
  5. Step 5: Solve for x
    x = 493,973,931.43/25,418.80
  6. Step 6: Final answer
    x = 19,433.41

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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.