Home / 34,320.86-47,366.78-20,899.97

Finding the Fourth Proportional to 34,320.86, 47,366.78 and 20,899.97

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Solution

The fourth proportional to 34,320.86, 47,366.78 and 20,899.97 is: 28,844.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    34,320.86 : 47,366.78 = 20,899.97 : x
  2. Step 2: Convert to fraction form
    34,320.86/47,366.78 = 20,899.97/x
  3. Step 3: Cross multiply
    34,320.86x = 47,366.78 × 20,899.97
  4. Step 4: Simplify right side
    34,320.86x = 989,964,383.73
  5. Step 5: Solve for x
    x = 989,964,383.73/34,320.86
  6. Step 6: Final answer
    x = 28,844.39

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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.