Home / 20,218.33-30,332.99-11,459.40

Finding the Fourth Proportional to 20,218.33, 30,332.99 and 11,459.40

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Solution

The fourth proportional to 20,218.33, 30,332.99 and 11,459.40 is: 17,192.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,218.33 : 30,332.99 = 11,459.40 : x
  2. Step 2: Convert to fraction form
    20,218.33/30,332.99 = 11,459.40/x
  3. Step 3: Cross multiply
    20,218.33x = 30,332.99 × 11,459.40
  4. Step 4: Simplify right side
    20,218.33x = 347,597,865.61
  5. Step 5: Solve for x
    x = 347,597,865.61/20,218.33
  6. Step 6: Final answer
    x = 17,192.21

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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.