Home / 21,937.94-30,272.34-13,436.18

Finding the Fourth Proportional to 21,937.94, 30,272.34 and 13,436.18

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Solution

The fourth proportional to 21,937.94, 30,272.34 and 13,436.18 is: 18,540.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,937.94 : 30,272.34 = 13,436.18 : x
  2. Step 2: Convert to fraction form
    21,937.94/30,272.34 = 13,436.18/x
  3. Step 3: Cross multiply
    21,937.94x = 30,272.34 × 13,436.18
  4. Step 4: Simplify right side
    21,937.94x = 406,744,609.26
  5. Step 5: Solve for x
    x = 406,744,609.26/21,937.94
  6. Step 6: Final answer
    x = 18,540.69

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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.