Home / 34,306.74-47,333.97-20,878.56

Finding the Fourth Proportional to 34,306.74, 47,333.97 and 20,878.56

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Solution

The fourth proportional to 34,306.74, 47,333.97 and 20,878.56 is: 28,806.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    34,306.74 : 47,333.97 = 20,878.56 : x
  2. Step 2: Convert to fraction form
    34,306.74/47,333.97 = 20,878.56/x
  3. Step 3: Cross multiply
    34,306.74x = 47,333.97 × 20,878.56
  4. Step 4: Simplify right side
    34,306.74x = 988,265,132.68
  5. Step 5: Solve for x
    x = 988,265,132.68/34,306.74
  6. Step 6: Final answer
    x = 28,806.73

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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.