Home / 25,451.47-35,121.43-15,373.95

Finding the Fourth Proportional to 25,451.47, 35,121.43 and 15,373.95

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Solution

The fourth proportional to 25,451.47, 35,121.43 and 15,373.95 is: 21,215.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,451.47 : 35,121.43 = 15,373.95 : x
  2. Step 2: Convert to fraction form
    25,451.47/35,121.43 = 15,373.95/x
  3. Step 3: Cross multiply
    25,451.47x = 35,121.43 × 15,373.95
  4. Step 4: Simplify right side
    25,451.47x = 539,955,108.75
  5. Step 5: Solve for x
    x = 539,955,108.75/25,451.47
  6. Step 6: Final answer
    x = 21,215.09

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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.