Home / 31,888.73-43,999.77-18,459.17

Finding the Fourth Proportional to 31,888.73, 43,999.77 and 18,459.17

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Solution

The fourth proportional to 31,888.73, 43,999.77 and 18,459.17 is: 25,469.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,888.73 : 43,999.77 = 18,459.17 : x
  2. Step 2: Convert to fraction form
    31,888.73/43,999.77 = 18,459.17/x
  3. Step 3: Cross multiply
    31,888.73x = 43,999.77 × 18,459.17
  4. Step 4: Simplify right side
    31,888.73x = 812,199,234.39
  5. Step 5: Solve for x
    x = 812,199,234.39/31,888.73
  6. Step 6: Final answer
    x = 25,469.79

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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.