Home / 25,875.72-38,815.92-11,081.28

Finding the Fourth Proportional to 25,875.72, 38,815.92 and 11,081.28

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Solution

The fourth proportional to 25,875.72, 38,815.92 and 11,081.28 is: 16,622.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,875.72 : 38,815.92 = 11,081.28 : x
  2. Step 2: Convert to fraction form
    25,875.72/38,815.92 = 11,081.28/x
  3. Step 3: Cross multiply
    25,875.72x = 38,815.92 × 11,081.28
  4. Step 4: Simplify right side
    25,875.72x = 430,130,077.98
  5. Step 5: Solve for x
    x = 430,130,077.98/25,875.72
  6. Step 6: Final answer
    x = 16,622.92

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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.