Home / 31,813.18-47,736.18-13,107.04

Finding the Fourth Proportional to 31,813.18, 47,736.18 and 13,107.04

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Solution

The fourth proportional to 31,813.18, 47,736.18 and 13,107.04 is: 19,667.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,813.18 : 47,736.18 = 13,107.04 : x
  2. Step 2: Convert to fraction form
    31,813.18/47,736.18 = 13,107.04/x
  3. Step 3: Cross multiply
    31,813.18x = 47,736.18 × 13,107.04
  4. Step 4: Simplify right side
    31,813.18x = 625,680,020.71
  5. Step 5: Solve for x
    x = 625,680,020.71/31,813.18
  6. Step 6: Final answer
    x = 19,667.32

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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.