Home / 28,629.92-42,938.40-13,052

Finding the Fourth Proportional to 28,629.92, 42,938.40 and 13,052

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Solution

The fourth proportional to 28,629.92, 42,938.40 and 13,052 is: 19,575.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,629.92 : 42,938.40 = 13,052 : x
  2. Step 2: Convert to fraction form
    28,629.92/42,938.40 = 13,052/x
  3. Step 3: Cross multiply
    28,629.92x = 42,938.40 × 13,052
  4. Step 4: Simplify right side
    28,629.92x = 560,431,996.80
  5. Step 5: Solve for x
    x = 560,431,996.80/28,629.92
  6. Step 6: Final answer
    x = 19,575.05

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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.