Home / 25,640.23-38,464.86-8,769.28

Finding the Fourth Proportional to 25,640.23, 38,464.86 and 8,769.28

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Solution

The fourth proportional to 25,640.23, 38,464.86 and 8,769.28 is: 13,155.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,640.23 : 38,464.86 = 8,769.28 : x
  2. Step 2: Convert to fraction form
    25,640.23/38,464.86 = 8,769.28/x
  3. Step 3: Cross multiply
    25,640.23x = 38,464.86 × 8,769.28
  4. Step 4: Simplify right side
    25,640.23x = 337,308,992.10
  5. Step 5: Solve for x
    x = 337,308,992.10/25,640.23
  6. Step 6: Final answer
    x = 13,155.46

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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.