Home / 31,199.04-43,040.97-18,616.50

Finding the Fourth Proportional to 31,199.04, 43,040.97 and 18,616.50

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Solution

The fourth proportional to 31,199.04, 43,040.97 and 18,616.50 is: 25,682.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,199.04 : 43,040.97 = 18,616.50 : x
  2. Step 2: Convert to fraction form
    31,199.04/43,040.97 = 18,616.50/x
  3. Step 3: Cross multiply
    31,199.04x = 43,040.97 × 18,616.50
  4. Step 4: Simplify right side
    31,199.04x = 801,272,218.01
  5. Step 5: Solve for x
    x = 801,272,218.01/31,199.04
  6. Step 6: Final answer
    x = 25,682.59

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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.