Home / 28,291.62-42,431.96-26,886.68

Finding the Fourth Proportional to 28,291.62, 42,431.96 and 26,886.68

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Solution

The fourth proportional to 28,291.62, 42,431.96 and 26,886.68 is: 40,324.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,291.62 : 42,431.96 = 26,886.68 : x
  2. Step 2: Convert to fraction form
    28,291.62/42,431.96 = 26,886.68/x
  3. Step 3: Cross multiply
    28,291.62x = 42,431.96 × 26,886.68
  4. Step 4: Simplify right side
    28,291.62x = 1,140,854,530.29
  5. Step 5: Solve for x
    x = 1,140,854,530.29/28,291.62
  6. Step 6: Final answer
    x = 40,324.82

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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.