Home / 25,849.62-35,676.36-15,783.90

Finding the Fourth Proportional to 25,849.62, 35,676.36 and 15,783.90

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Solution

The fourth proportional to 25,849.62, 35,676.36 and 15,783.90 is: 21,784.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,849.62 : 35,676.36 = 15,783.90 : x
  2. Step 2: Convert to fraction form
    25,849.62/35,676.36 = 15,783.90/x
  3. Step 3: Cross multiply
    25,849.62x = 35,676.36 × 15,783.90
  4. Step 4: Simplify right side
    25,849.62x = 563,112,098.60
  5. Step 5: Solve for x
    x = 563,112,098.60/25,849.62
  6. Step 6: Final answer
    x = 21,784.15

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.