Home / 28,294.26-42,435.90-26,889.30

Finding the Fourth Proportional to 28,294.26, 42,435.90 and 26,889.30

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Solution

The fourth proportional to 28,294.26, 42,435.90 and 26,889.30 is: 40,328.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,294.26 : 42,435.90 = 26,889.30 : x
  2. Step 2: Convert to fraction form
    28,294.26/42,435.90 = 26,889.30/x
  3. Step 3: Cross multiply
    28,294.26x = 42,435.90 × 26,889.30
  4. Step 4: Simplify right side
    28,294.26x = 1,141,071,645.87
  5. Step 5: Solve for x
    x = 1,141,071,645.87/28,294.26
  6. Step 6: Final answer
    x = 40,328.73

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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.