Home / 20,078.96-30,117.42-9,541.26

Finding the Fourth Proportional to 20,078.96, 30,117.42 and 9,541.26

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Solution

The fourth proportional to 20,078.96, 30,117.42 and 9,541.26 is: 14,311.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,078.96 : 30,117.42 = 9,541.26 : x
  2. Step 2: Convert to fraction form
    20,078.96/30,117.42 = 9,541.26/x
  3. Step 3: Cross multiply
    20,078.96x = 30,117.42 × 9,541.26
  4. Step 4: Simplify right side
    20,078.96x = 287,358,134.75
  5. Step 5: Solve for x
    x = 287,358,134.75/20,078.96
  6. Step 6: Final answer
    x = 14,311.41

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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.