Home / 31,595.22-47,356.38-11,861.19

Finding the Fourth Proportional to 31,595.22, 47,356.38 and 11,861.19

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Solution

The fourth proportional to 31,595.22, 47,356.38 and 11,861.19 is: 17,778.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,595.22 : 47,356.38 = 11,861.19 : x
  2. Step 2: Convert to fraction form
    31,595.22/47,356.38 = 11,861.19/x
  3. Step 3: Cross multiply
    31,595.22x = 47,356.38 × 11,861.19
  4. Step 4: Simplify right side
    31,595.22x = 561,703,020.89
  5. Step 5: Solve for x
    x = 561,703,020.89/31,595.22
  6. Step 6: Final answer
    x = 17,778.10

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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.