Home / 27,143.48-37,436.94-18,188.12

Finding the Fourth Proportional to 27,143.48, 37,436.94 and 18,188.12

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Solution

The fourth proportional to 27,143.48, 37,436.94 and 18,188.12 is: 25,085.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,143.48 : 37,436.94 = 18,188.12 : x
  2. Step 2: Convert to fraction form
    27,143.48/37,436.94 = 18,188.12/x
  3. Step 3: Cross multiply
    27,143.48x = 37,436.94 × 18,188.12
  4. Step 4: Simplify right side
    27,143.48x = 680,907,557.15
  5. Step 5: Solve for x
    x = 680,907,557.15/27,143.48
  6. Step 6: Final answer
    x = 25,085.49

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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.