Home / 25,947.90-38,917.56-9,305.40

Finding the Fourth Proportional to 25,947.90, 38,917.56 and 9,305.40

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Solution

The fourth proportional to 25,947.90, 38,917.56 and 9,305.40 is: 13,956.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,947.90 : 38,917.56 = 9,305.40 : x
  2. Step 2: Convert to fraction form
    25,947.90/38,917.56 = 9,305.40/x
  3. Step 3: Cross multiply
    25,947.90x = 38,917.56 × 9,305.40
  4. Step 4: Simplify right side
    25,947.90x = 362,143,462.82
  5. Step 5: Solve for x
    x = 362,143,462.82/25,947.90
  6. Step 6: Final answer
    x = 13,956.56

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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.