Home / 18,540.81-25,589.88-14,499.63

Finding the Fourth Proportional to 18,540.81, 25,589.88 and 14,499.63

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Solution

The fourth proportional to 18,540.81, 25,589.88 and 14,499.63 is: 20,012.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,540.81 : 25,589.88 = 14,499.63 : x
  2. Step 2: Convert to fraction form
    18,540.81/25,589.88 = 14,499.63/x
  3. Step 3: Cross multiply
    18,540.81x = 25,589.88 × 14,499.63
  4. Step 4: Simplify right side
    18,540.81x = 371,043,791.74
  5. Step 5: Solve for x
    x = 371,043,791.74/18,540.81
  6. Step 6: Final answer
    x = 20,012.28

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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.