Home / 20,246.48-30,379.17-9,156.50

Finding the Fourth Proportional to 20,246.48, 30,379.17 and 9,156.50

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Solution

The fourth proportional to 20,246.48, 30,379.17 and 9,156.50 is: 13,739.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,246.48 : 30,379.17 = 9,156.50 : x
  2. Step 2: Convert to fraction form
    20,246.48/30,379.17 = 9,156.50/x
  3. Step 3: Cross multiply
    20,246.48x = 30,379.17 × 9,156.50
  4. Step 4: Simplify right side
    20,246.48x = 278,166,870.11
  5. Step 5: Solve for x
    x = 278,166,870.11/20,246.48
  6. Step 6: Final answer
    x = 13,739.02

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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.