Home / 20,075.28-30,103.92-6,221.04

Finding the Fourth Proportional to 20,075.28, 30,103.92 and 6,221.04

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Solution

The fourth proportional to 20,075.28, 30,103.92 and 6,221.04 is: 9,328.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,075.28 : 30,103.92 = 6,221.04 : x
  2. Step 2: Convert to fraction form
    20,075.28/30,103.92 = 6,221.04/x
  3. Step 3: Cross multiply
    20,075.28x = 30,103.92 × 6,221.04
  4. Step 4: Simplify right side
    20,075.28x = 187,277,690.48
  5. Step 5: Solve for x
    x = 187,277,690.48/20,075.28
  6. Step 6: Final answer
    x = 9,328.77

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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.