Home / 31,609.32-47,420.91-11,887.87

Finding the Fourth Proportional to 31,609.32, 47,420.91 and 11,887.87

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Solution

The fourth proportional to 31,609.32, 47,420.91 and 11,887.87 is: 17,834.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,609.32 : 47,420.91 = 11,887.87 : x
  2. Step 2: Convert to fraction form
    31,609.32/47,420.91 = 11,887.87/x
  3. Step 3: Cross multiply
    31,609.32x = 47,420.91 × 11,887.87
  4. Step 4: Simplify right side
    31,609.32x = 563,733,613.36
  5. Step 5: Solve for x
    x = 563,733,613.36/31,609.32
  6. Step 6: Final answer
    x = 17,834.41

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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.