Home / 20,306.70-30,463.29-8,620.02

Finding the Fourth Proportional to 20,306.70, 30,463.29 and 8,620.02

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Solution

The fourth proportional to 20,306.70, 30,463.29 and 8,620.02 is: 12,931.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,306.70 : 30,463.29 = 8,620.02 : x
  2. Step 2: Convert to fraction form
    20,306.70/30,463.29 = 8,620.02/x
  3. Step 3: Cross multiply
    20,306.70x = 30,463.29 × 8,620.02
  4. Step 4: Simplify right side
    20,306.70x = 262,594,169.07
  5. Step 5: Solve for x
    x = 262,594,169.07/20,306.70
  6. Step 6: Final answer
    x = 12,931.41

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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.