Home / 20,318.04-30,476.30-7,170.12

Finding the Fourth Proportional to 20,318.04, 30,476.30 and 7,170.12

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Solution

The fourth proportional to 20,318.04, 30,476.30 and 7,170.12 is: 10,754.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,318.04 : 30,476.30 = 7,170.12 : x
  2. Step 2: Convert to fraction form
    20,318.04/30,476.30 = 7,170.12/x
  3. Step 3: Cross multiply
    20,318.04x = 30,476.30 × 7,170.12
  4. Step 4: Simplify right side
    20,318.04x = 218,518,692.31
  5. Step 5: Solve for x
    x = 218,518,692.31/20,318.04
  6. Step 6: Final answer
    x = 10,754.91

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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.