Home / 25,785.56-38,691.51-12,291.98

Finding the Fourth Proportional to 25,785.56, 38,691.51 and 12,291.98

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Solution

The fourth proportional to 25,785.56, 38,691.51 and 12,291.98 is: 18,444.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,785.56 : 38,691.51 = 12,291.98 : x
  2. Step 2: Convert to fraction form
    25,785.56/38,691.51 = 12,291.98/x
  3. Step 3: Cross multiply
    25,785.56x = 38,691.51 × 12,291.98
  4. Step 4: Simplify right side
    25,785.56x = 475,595,267.09
  5. Step 5: Solve for x
    x = 475,595,267.09/25,785.56
  6. Step 6: Final answer
    x = 18,444.25

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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.