Home / 18,538.49-25,582.99-10,040.42

Finding the Fourth Proportional to 18,538.49, 25,582.99 and 10,040.42

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Solution

The fourth proportional to 18,538.49, 25,582.99 and 10,040.42 is: 13,855.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,538.49 : 25,582.99 = 10,040.42 : x
  2. Step 2: Convert to fraction form
    18,538.49/25,582.99 = 10,040.42/x
  3. Step 3: Cross multiply
    18,538.49x = 25,582.99 × 10,040.42
  4. Step 4: Simplify right side
    18,538.49x = 256,863,964.46
  5. Step 5: Solve for x
    x = 256,863,964.46/18,538.49
  6. Step 6: Final answer
    x = 13,855.71

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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.