Home / 31,610.75-47,418.55-11,888.87

Finding the Fourth Proportional to 31,610.75, 47,418.55 and 11,888.87

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Solution

The fourth proportional to 31,610.75, 47,418.55 and 11,888.87 is: 17,834.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,610.75 : 47,418.55 = 11,888.87 : x
  2. Step 2: Convert to fraction form
    31,610.75/47,418.55 = 11,888.87/x
  3. Step 3: Cross multiply
    31,610.75x = 47,418.55 × 11,888.87
  4. Step 4: Simplify right side
    31,610.75x = 563,752,709.72
  5. Step 5: Solve for x
    x = 563,752,709.72/31,610.75
  6. Step 6: Final answer
    x = 17,834.21

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1.5x scale

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.