Home / 40,811.28-61,223.04-12,734.16

Finding the Fourth Proportional to 40,811.28, 61,223.04 and 12,734.16

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Solution

The fourth proportional to 40,811.28, 61,223.04 and 12,734.16 is: 19,103.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,811.28 : 61,223.04 = 12,734.16 : x
  2. Step 2: Convert to fraction form
    40,811.28/61,223.04 = 12,734.16/x
  3. Step 3: Cross multiply
    40,811.28x = 61,223.04 × 12,734.16
  4. Step 4: Simplify right side
    40,811.28x = 779,623,987.05
  5. Step 5: Solve for x
    x = 779,623,987.05/40,811.28
  6. Step 6: Final answer
    x = 19,103.15

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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.