Home / 40,436.57-60,661.92-13,781.15

Finding the Fourth Proportional to 40,436.57, 60,661.92 and 13,781.15

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Solution

The fourth proportional to 40,436.57, 60,661.92 and 13,781.15 is: 20,674.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,436.57 : 60,661.92 = 13,781.15 : x
  2. Step 2: Convert to fraction form
    40,436.57/60,661.92 = 13,781.15/x
  3. Step 3: Cross multiply
    40,436.57x = 60,661.92 × 13,781.15
  4. Step 4: Simplify right side
    40,436.57x = 835,991,018.81
  5. Step 5: Solve for x
    x = 835,991,018.81/40,436.57
  6. Step 6: Final answer
    x = 20,674.13

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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.