Home / 28,207.07-42,269.01-15,709.88

Finding the Fourth Proportional to 28,207.07, 42,269.01 and 15,709.88

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Solution

The fourth proportional to 28,207.07, 42,269.01 and 15,709.88 is: 23,541.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,207.07 : 42,269.01 = 15,709.88 : x
  2. Step 2: Convert to fraction form
    28,207.07/42,269.01 = 15,709.88/x
  3. Step 3: Cross multiply
    28,207.07x = 42,269.01 × 15,709.88
  4. Step 4: Simplify right side
    28,207.07x = 664,040,863.47
  5. Step 5: Solve for x
    x = 664,040,863.47/28,207.07
  6. Step 6: Final answer
    x = 23,541.65

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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.