Home / 20,379.02-30,562.21-9,842.49

Finding the Fourth Proportional to 20,379.02, 30,562.21 and 9,842.49

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Solution

The fourth proportional to 20,379.02, 30,562.21 and 9,842.49 is: 14,760.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,379.02 : 30,562.21 = 9,842.49 : x
  2. Step 2: Convert to fraction form
    20,379.02/30,562.21 = 9,842.49/x
  3. Step 3: Cross multiply
    20,379.02x = 30,562.21 × 9,842.49
  4. Step 4: Simplify right side
    20,379.02x = 300,808,246.30
  5. Step 5: Solve for x
    x = 300,808,246.30/20,379.02
  6. Step 6: Final answer
    x = 14,760.68

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1.5x scale

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.