Home / 18,188.29-27,121.81-15,976.18

Finding the Fourth Proportional to 18,188.29, 27,121.81 and 15,976.18

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Solution

The fourth proportional to 18,188.29, 27,121.81 and 15,976.18 is: 23,823.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,188.29 : 27,121.81 = 15,976.18 : x
  2. Step 2: Convert to fraction form
    18,188.29/27,121.81 = 15,976.18/x
  3. Step 3: Cross multiply
    18,188.29x = 27,121.81 × 15,976.18
  4. Step 4: Simplify right side
    18,188.29x = 433,302,810.74
  5. Step 5: Solve for x
    x = 433,302,810.74/18,188.29
  6. Step 6: Final answer
    x = 23,823.18

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.