Home / 40,971.28-61,456.92-13,271.44

Finding the Fourth Proportional to 40,971.28, 61,456.92 and 13,271.44

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Solution

The fourth proportional to 40,971.28, 61,456.92 and 13,271.44 is: 19,907.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,971.28 : 61,456.92 = 13,271.44 : x
  2. Step 2: Convert to fraction form
    40,971.28/61,456.92 = 13,271.44/x
  3. Step 3: Cross multiply
    40,971.28x = 61,456.92 × 13,271.44
  4. Step 4: Simplify right side
    40,971.28x = 815,621,826.36
  5. Step 5: Solve for x
    x = 815,621,826.36/40,971.28
  6. Step 6: Final answer
    x = 19,907.16

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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.