Home / 31,251.72-43,127.48-16,911.55

Finding the Fourth Proportional to 31,251.72, 43,127.48 and 16,911.55

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Solution

The fourth proportional to 31,251.72, 43,127.48 and 16,911.55 is: 23,338.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,251.72 : 43,127.48 = 16,911.55 : x
  2. Step 2: Convert to fraction form
    31,251.72/43,127.48 = 16,911.55/x
  3. Step 3: Cross multiply
    31,251.72x = 43,127.48 × 16,911.55
  4. Step 4: Simplify right side
    31,251.72x = 729,352,534.39
  5. Step 5: Solve for x
    x = 729,352,534.39/31,251.72
  6. Step 6: Final answer
    x = 23,338.00

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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.