Home / 25,947.54-38,779.15-18,942.31

Finding the Fourth Proportional to 25,947.54, 38,779.15 and 18,942.31

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Solution

The fourth proportional to 25,947.54, 38,779.15 and 18,942.31 is: 28,309.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,947.54 : 38,779.15 = 18,942.31 : x
  2. Step 2: Convert to fraction form
    25,947.54/38,779.15 = 18,942.31/x
  3. Step 3: Cross multiply
    25,947.54x = 38,779.15 × 18,942.31
  4. Step 4: Simplify right side
    25,947.54x = 734,566,680.84
  5. Step 5: Solve for x
    x = 734,566,680.84/25,947.54
  6. Step 6: Final answer
    x = 28,309.68

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.