Home / 20,562.36-30,848.40-8,869.20

Finding the Fourth Proportional to 20,562.36, 30,848.40 and 8,869.20

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Solution

The fourth proportional to 20,562.36, 30,848.40 and 8,869.20 is: 13,305.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,562.36 : 30,848.40 = 8,869.20 : x
  2. Step 2: Convert to fraction form
    20,562.36/30,848.40 = 8,869.20/x
  3. Step 3: Cross multiply
    20,562.36x = 30,848.40 × 8,869.20
  4. Step 4: Simplify right side
    20,562.36x = 273,600,629.28
  5. Step 5: Solve for x
    x = 273,600,629.28/20,562.36
  6. Step 6: Final answer
    x = 13,305.90

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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.