Home / 40,910.60-61,423.35-20,934.38

Finding the Fourth Proportional to 40,910.60, 61,423.35 and 20,934.38

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Solution

The fourth proportional to 40,910.60, 61,423.35 and 20,934.38 is: 31,430.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,910.60 : 61,423.35 = 20,934.38 : x
  2. Step 2: Convert to fraction form
    40,910.60/61,423.35 = 20,934.38/x
  3. Step 3: Cross multiply
    40,910.60x = 61,423.35 × 20,934.38
  4. Step 4: Simplify right side
    40,910.60x = 1,285,859,442.66
  5. Step 5: Solve for x
    x = 1,285,859,442.66/40,910.60
  6. Step 6: Final answer
    x = 31,430.96

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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.