Home / 34,876.35-48,129.56-20,536.80

Finding the Fourth Proportional to 34,876.35, 48,129.56 and 20,536.80

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Solution

The fourth proportional to 34,876.35, 48,129.56 and 20,536.80 is: 28,340.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    34,876.35 : 48,129.56 = 20,536.80 : x
  2. Step 2: Convert to fraction form
    34,876.35/48,129.56 = 20,536.80/x
  3. Step 3: Cross multiply
    34,876.35x = 48,129.56 × 20,536.80
  4. Step 4: Simplify right side
    34,876.35x = 988,427,045.12
  5. Step 5: Solve for x
    x = 988,427,045.12/34,876.35
  6. Step 6: Final answer
    x = 28,340.90

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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.