Home / 31,009.62-46,487.11-12,302.79

Finding the Fourth Proportional to 31,009.62, 46,487.11 and 12,302.79

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Solution

The fourth proportional to 31,009.62, 46,487.11 and 12,302.79 is: 18,443.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,009.62 : 46,487.11 = 12,302.79 : x
  2. Step 2: Convert to fraction form
    31,009.62/46,487.11 = 12,302.79/x
  3. Step 3: Cross multiply
    31,009.62x = 46,487.11 × 12,302.79
  4. Step 4: Simplify right side
    31,009.62x = 571,921,121.28
  5. Step 5: Solve for x
    x = 571,921,121.28/31,009.62
  6. Step 6: Final answer
    x = 18,443.35

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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.