Home / 40,922.40-61,383.60-13,223.20

Finding the Fourth Proportional to 40,922.40, 61,383.60 and 13,223.20

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Solution

The fourth proportional to 40,922.40, 61,383.60 and 13,223.20 is: 19,834.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,922.40 : 61,383.60 = 13,223.20 : x
  2. Step 2: Convert to fraction form
    40,922.40/61,383.60 = 13,223.20/x
  3. Step 3: Cross multiply
    40,922.40x = 61,383.60 × 13,223.20
  4. Step 4: Simplify right side
    40,922.40x = 811,687,619.52
  5. Step 5: Solve for x
    x = 811,687,619.52/40,922.40
  6. Step 6: Final answer
    x = 19,834.80

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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.