Home / 20,165.12-30,247.88-7,017.92

Finding the Fourth Proportional to 20,165.12, 30,247.88 and 7,017.92

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Solution

The fourth proportional to 20,165.12, 30,247.88 and 7,017.92 is: 10,526.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,165.12 : 30,247.88 = 7,017.92 : x
  2. Step 2: Convert to fraction form
    20,165.12/30,247.88 = 7,017.92/x
  3. Step 3: Cross multiply
    20,165.12x = 30,247.88 × 7,017.92
  4. Step 4: Simplify right side
    20,165.12x = 212,277,202.01
  5. Step 5: Solve for x
    x = 212,277,202.01/20,165.12
  6. Step 6: Final answer
    x = 10,526.95

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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.