Home / 34,561.86-47,695.32-20,231.55

Finding the Fourth Proportional to 34,561.86, 47,695.32 and 20,231.55

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Solution

The fourth proportional to 34,561.86, 47,695.32 and 20,231.55 is: 27,919.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    34,561.86 : 47,695.32 = 20,231.55 : x
  2. Step 2: Convert to fraction form
    34,561.86/47,695.32 = 20,231.55/x
  3. Step 3: Cross multiply
    34,561.86x = 47,695.32 × 20,231.55
  4. Step 4: Simplify right side
    34,561.86x = 964,950,251.35
  5. Step 5: Solve for x
    x = 964,950,251.35/34,561.86
  6. Step 6: Final answer
    x = 27,919.51

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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.