Home / 31,918.08-47,861.10-18,595.38

Finding the Fourth Proportional to 31,918.08, 47,861.10 and 18,595.38

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Solution

The fourth proportional to 31,918.08, 47,861.10 and 18,595.38 is: 27,883.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,918.08 : 47,861.10 = 18,595.38 : x
  2. Step 2: Convert to fraction form
    31,918.08/47,861.10 = 18,595.38/x
  3. Step 3: Cross multiply
    31,918.08x = 47,861.10 × 18,595.38
  4. Step 4: Simplify right side
    31,918.08x = 889,995,341.72
  5. Step 5: Solve for x
    x = 889,995,341.72/31,918.08
  6. Step 6: Final answer
    x = 27,883.74

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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.