Home / 31,887.11-47,830.11-11,110.07

Finding the Fourth Proportional to 31,887.11, 47,830.11 and 11,110.07

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Solution

The fourth proportional to 31,887.11, 47,830.11 and 11,110.07 is: 16,664.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,887.11 : 47,830.11 = 11,110.07 : x
  2. Step 2: Convert to fraction form
    31,887.11/47,830.11 = 11,110.07/x
  3. Step 3: Cross multiply
    31,887.11x = 47,830.11 × 11,110.07
  4. Step 4: Simplify right side
    31,887.11x = 531,395,870.21
  5. Step 5: Solve for x
    x = 531,395,870.21/31,887.11
  6. Step 6: Final answer
    x = 16,664.91

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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.