Home / 34,654.74-47,780.19-28,920.44

Finding the Fourth Proportional to 34,654.74, 47,780.19 and 28,920.44

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Solution

The fourth proportional to 34,654.74, 47,780.19 and 28,920.44 is: 39,874.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    34,654.74 : 47,780.19 = 28,920.44 : x
  2. Step 2: Convert to fraction form
    34,654.74/47,780.19 = 28,920.44/x
  3. Step 3: Cross multiply
    34,654.74x = 47,780.19 × 28,920.44
  4. Step 4: Simplify right side
    34,654.74x = 1,381,823,879.18
  5. Step 5: Solve for x
    x = 1,381,823,879.18/34,654.74
  6. Step 6: Final answer
    x = 39,874.02

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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.