Home / 20,322.28-30,482.61-7,836.94

Finding the Fourth Proportional to 20,322.28, 30,482.61 and 7,836.94

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Solution

The fourth proportional to 20,322.28, 30,482.61 and 7,836.94 is: 11,755.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,322.28 : 30,482.61 = 7,836.94 : x
  2. Step 2: Convert to fraction form
    20,322.28/30,482.61 = 7,836.94/x
  3. Step 3: Cross multiply
    20,322.28x = 30,482.61 × 7,836.94
  4. Step 4: Simplify right side
    20,322.28x = 238,890,385.61
  5. Step 5: Solve for x
    x = 238,890,385.61/20,322.28
  6. Step 6: Final answer
    x = 11,755.10

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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.