Home / 31,749.12-47,605.38-12,015.06

Finding the Fourth Proportional to 31,749.12, 47,605.38 and 12,015.06

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Solution

The fourth proportional to 31,749.12, 47,605.38 and 12,015.06 is: 18,015.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,749.12 : 47,605.38 = 12,015.06 : x
  2. Step 2: Convert to fraction form
    31,749.12/47,605.38 = 12,015.06/x
  3. Step 3: Cross multiply
    31,749.12x = 47,605.38 × 12,015.06
  4. Step 4: Simplify right side
    31,749.12x = 571,981,497.02
  5. Step 5: Solve for x
    x = 571,981,497.02/31,749.12
  6. Step 6: Final answer
    x = 18,015.66

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.