Home / 27,006.10-40,379.55-20,007.70

Finding the Fourth Proportional to 27,006.10, 40,379.55 and 20,007.70

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Solution

The fourth proportional to 27,006.10, 40,379.55 and 20,007.70 is: 29,915.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,006.10 : 40,379.55 = 20,007.70 : x
  2. Step 2: Convert to fraction form
    27,006.10/40,379.55 = 20,007.70/x
  3. Step 3: Cross multiply
    27,006.10x = 40,379.55 × 20,007.70
  4. Step 4: Simplify right side
    27,006.10x = 807,901,922.54
  5. Step 5: Solve for x
    x = 807,901,922.54/27,006.10
  6. Step 6: Final answer
    x = 29,915.53

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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.