Home / 29,938.60-45,005.10-21,233.80

Finding the Fourth Proportional to 29,938.60, 45,005.10 and 21,233.80

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Solution

The fourth proportional to 29,938.60, 45,005.10 and 21,233.80 is: 31,919.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    29,938.60 : 45,005.10 = 21,233.80 : x
  2. Step 2: Convert to fraction form
    29,938.60/45,005.10 = 21,233.80/x
  3. Step 3: Cross multiply
    29,938.60x = 45,005.10 × 21,233.80
  4. Step 4: Simplify right side
    29,938.60x = 955,629,292.38
  5. Step 5: Solve for x
    x = 955,629,292.38/29,938.60
  6. Step 6: Final answer
    x = 31,919.64

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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.