Home / 25,450.47-35,120.05-15,372.95

Finding the Fourth Proportional to 25,450.47, 35,120.05 and 15,372.95

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Solution

The fourth proportional to 25,450.47, 35,120.05 and 15,372.95 is: 21,213.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,450.47 : 35,120.05 = 15,372.95 : x
  2. Step 2: Convert to fraction form
    25,450.47/35,120.05 = 15,372.95/x
  3. Step 3: Cross multiply
    25,450.47x = 35,120.05 × 15,372.95
  4. Step 4: Simplify right side
    25,450.47x = 539,898,558.61
  5. Step 5: Solve for x
    x = 539,898,558.61/25,450.47
  6. Step 6: Final answer
    x = 21,213.70

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.