Home / 34,836.45-48,078.36-20,689.29

Finding the Fourth Proportional to 34,836.45, 48,078.36 and 20,689.29

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Solution

The fourth proportional to 34,836.45, 48,078.36 and 20,689.29 is: 28,553.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    34,836.45 : 48,078.36 = 20,689.29 : x
  2. Step 2: Convert to fraction form
    34,836.45/48,078.36 = 20,689.29/x
  3. Step 3: Cross multiply
    34,836.45x = 48,078.36 × 20,689.29
  4. Step 4: Simplify right side
    34,836.45x = 994,707,132.76
  5. Step 5: Solve for x
    x = 994,707,132.76/34,836.45
  6. Step 6: Final answer
    x = 28,553.63

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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.