Home / 20,218.68-30,332.38-9,836.28

Finding the Fourth Proportional to 20,218.68, 30,332.38 and 9,836.28

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Solution

The fourth proportional to 20,218.68, 30,332.38 and 9,836.28 is: 14,756.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,218.68 : 30,332.38 = 9,836.28 : x
  2. Step 2: Convert to fraction form
    20,218.68/30,332.38 = 9,836.28/x
  3. Step 3: Cross multiply
    20,218.68x = 30,332.38 × 9,836.28
  4. Step 4: Simplify right side
    20,218.68x = 298,357,782.75
  5. Step 5: Solve for x
    x = 298,357,782.75/20,218.68
  6. Step 6: Final answer
    x = 14,756.54

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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.