Home / 25,784.20-38,676.78-20,652.04

Finding the Fourth Proportional to 25,784.20, 38,676.78 and 20,652.04

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Solution

The fourth proportional to 25,784.20, 38,676.78 and 20,652.04 is: 30,978.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,784.20 : 38,676.78 = 20,652.04 : x
  2. Step 2: Convert to fraction form
    25,784.20/38,676.78 = 20,652.04/x
  3. Step 3: Cross multiply
    25,784.20x = 38,676.78 × 20,652.04
  4. Step 4: Simplify right side
    25,784.20x = 798,754,407.63
  5. Step 5: Solve for x
    x = 798,754,407.63/25,784.20
  6. Step 6: Final answer
    x = 30,978.44

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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.