Home / 31,981.78-44,131.18-18,548.13

Finding the Fourth Proportional to 31,981.78, 44,131.18 and 18,548.13

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Solution

The fourth proportional to 31,981.78, 44,131.18 and 18,548.13 is: 25,594.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,981.78 : 44,131.18 = 18,548.13 : x
  2. Step 2: Convert to fraction form
    31,981.78/44,131.18 = 18,548.13/x
  3. Step 3: Cross multiply
    31,981.78x = 44,131.18 × 18,548.13
  4. Step 4: Simplify right side
    31,981.78x = 818,550,863.69
  5. Step 5: Solve for x
    x = 818,550,863.69/31,981.78
  6. Step 6: Final answer
    x = 25,594.29

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.