Home / 20,434.56-30,647.52-9,333.96

Finding the Fourth Proportional to 20,434.56, 30,647.52 and 9,333.96

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Solution

The fourth proportional to 20,434.56, 30,647.52 and 9,333.96 is: 13,998.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,434.56 : 30,647.52 = 9,333.96 : x
  2. Step 2: Convert to fraction form
    20,434.56/30,647.52 = 9,333.96/x
  3. Step 3: Cross multiply
    20,434.56x = 30,647.52 × 9,333.96
  4. Step 4: Simplify right side
    20,434.56x = 286,062,725.78
  5. Step 5: Solve for x
    x = 286,062,725.78/20,434.56
  6. Step 6: Final answer
    x = 13,998.97

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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.