Home / 25,579.41-38,379.51-20,369.49

Finding the Fourth Proportional to 25,579.41, 38,379.51 and 20,369.49

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Solution

The fourth proportional to 25,579.41, 38,379.51 and 20,369.49 is: 30,562.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,579.41 : 38,379.51 = 20,369.49 : x
  2. Step 2: Convert to fraction form
    25,579.41/38,379.51 = 20,369.49/x
  3. Step 3: Cross multiply
    25,579.41x = 38,379.51 × 20,369.49
  4. Step 4: Simplify right side
    25,579.41x = 781,771,045.15
  5. Step 5: Solve for x
    x = 781,771,045.15/25,579.41
  6. Step 6: Final answer
    x = 30,562.51

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1.5x scale

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.