Home / 20,563.40-30,836.46-8,870.60

Finding the Fourth Proportional to 20,563.40, 30,836.46 and 8,870.60

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Solution

The fourth proportional to 20,563.40, 30,836.46 and 8,870.60 is: 13,302.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,563.40 : 30,836.46 = 8,870.60 : x
  2. Step 2: Convert to fraction form
    20,563.40/30,836.46 = 8,870.60/x
  3. Step 3: Cross multiply
    20,563.40x = 30,836.46 × 8,870.60
  4. Step 4: Simplify right side
    20,563.40x = 273,537,902.08
  5. Step 5: Solve for x
    x = 273,537,902.08/20,563.40
  6. Step 6: Final answer
    x = 13,302.17

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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.