Home / 20,292.92-30,431.62-9,756.28

Finding the Fourth Proportional to 20,292.92, 30,431.62 and 9,756.28

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Solution

The fourth proportional to 20,292.92, 30,431.62 and 9,756.28 is: 14,630.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,292.92 : 30,431.62 = 9,756.28 : x
  2. Step 2: Convert to fraction form
    20,292.92/30,431.62 = 9,756.28/x
  3. Step 3: Cross multiply
    20,292.92x = 30,431.62 × 9,756.28
  4. Step 4: Simplify right side
    20,292.92x = 296,899,305.10
  5. Step 5: Solve for x
    x = 296,899,305.10/20,292.92
  6. Step 6: Final answer
    x = 14,630.69

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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.