Home / 28,061.82-38,713.09-18,489.43

Finding the Fourth Proportional to 28,061.82, 38,713.09 and 18,489.43

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Solution

The fourth proportional to 28,061.82, 38,713.09 and 18,489.43 is: 25,507.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,061.82 : 38,713.09 = 18,489.43 : x
  2. Step 2: Convert to fraction form
    28,061.82/38,713.09 = 18,489.43/x
  3. Step 3: Cross multiply
    28,061.82x = 38,713.09 × 18,489.43
  4. Step 4: Simplify right side
    28,061.82x = 715,782,967.64
  5. Step 5: Solve for x
    x = 715,782,967.64/28,061.82
  6. Step 6: Final answer
    x = 25,507.36

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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.