Home / 31,947.42-47,943.54-13,227.78

Finding the Fourth Proportional to 31,947.42, 47,943.54 and 13,227.78

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Solution

The fourth proportional to 31,947.42, 47,943.54 and 13,227.78 is: 19,850.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,947.42 : 47,943.54 = 13,227.78 : x
  2. Step 2: Convert to fraction form
    31,947.42/47,943.54 = 13,227.78/x
  3. Step 3: Cross multiply
    31,947.42x = 47,943.54 × 13,227.78
  4. Step 4: Simplify right side
    31,947.42x = 634,186,599.54
  5. Step 5: Solve for x
    x = 634,186,599.54/31,947.42
  6. Step 6: Final answer
    x = 19,850.95

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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.