Home / 25,767.56-38,677.26-18,821

Finding the Fourth Proportional to 25,767.56, 38,677.26 and 18,821

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Solution

The fourth proportional to 25,767.56, 38,677.26 and 18,821 is: 28,250.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,767.56 : 38,677.26 = 18,821 : x
  2. Step 2: Convert to fraction form
    25,767.56/38,677.26 = 18,821/x
  3. Step 3: Cross multiply
    25,767.56x = 38,677.26 × 18,821
  4. Step 4: Simplify right side
    25,767.56x = 727,944,710.46
  5. Step 5: Solve for x
    x = 727,944,710.46/25,767.56
  6. Step 6: Final answer
    x = 28,250.43

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.