Home / 31,301.40-46,910.52-11,561.76

Finding the Fourth Proportional to 31,301.40, 46,910.52 and 11,561.76

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Solution

The fourth proportional to 31,301.40, 46,910.52 and 11,561.76 is: 17,327.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,301.40 : 46,910.52 = 11,561.76 : x
  2. Step 2: Convert to fraction form
    31,301.40/46,910.52 = 11,561.76/x
  3. Step 3: Cross multiply
    31,301.40x = 46,910.52 × 11,561.76
  4. Step 4: Simplify right side
    31,301.40x = 542,368,173.72
  5. Step 5: Solve for x
    x = 542,368,173.72/31,301.40
  6. Step 6: Final answer
    x = 17,327.28

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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.