Home / 28,440.11-39,233.41-18,377.18

Finding the Fourth Proportional to 28,440.11, 39,233.41 and 18,377.18

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Solution

The fourth proportional to 28,440.11, 39,233.41 and 18,377.18 is: 25,351.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,440.11 : 39,233.41 = 18,377.18 : x
  2. Step 2: Convert to fraction form
    28,440.11/39,233.41 = 18,377.18/x
  3. Step 3: Cross multiply
    28,440.11x = 39,233.41 × 18,377.18
  4. Step 4: Simplify right side
    28,440.11x = 720,999,445.97
  5. Step 5: Solve for x
    x = 720,999,445.97/28,440.11
  6. Step 6: Final answer
    x = 25,351.50

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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.