Home / 20,300.55-30,459.73-9,634.61

Finding the Fourth Proportional to 20,300.55, 30,459.73 and 9,634.61

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Solution

The fourth proportional to 20,300.55, 30,459.73 and 9,634.61 is: 14,456.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,300.55 : 30,459.73 = 9,634.61 : x
  2. Step 2: Convert to fraction form
    20,300.55/30,459.73 = 9,634.61/x
  3. Step 3: Cross multiply
    20,300.55x = 30,459.73 × 9,634.61
  4. Step 4: Simplify right side
    20,300.55x = 293,467,773.59
  5. Step 5: Solve for x
    x = 293,467,773.59/20,300.55
  6. Step 6: Final answer
    x = 14,456.15

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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.