Home / 20,220.04-30,309.18-9,134.44

Finding the Fourth Proportional to 20,220.04, 30,309.18 and 9,134.44

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Solution

The fourth proportional to 20,220.04, 30,309.18 and 9,134.44 is: 13,692.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,220.04 : 30,309.18 = 9,134.44 : x
  2. Step 2: Convert to fraction form
    20,220.04/30,309.18 = 9,134.44/x
  3. Step 3: Cross multiply
    20,220.04x = 30,309.18 × 9,134.44
  4. Step 4: Simplify right side
    20,220.04x = 276,857,386.16
  5. Step 5: Solve for x
    x = 276,857,386.16/20,220.04
  6. Step 6: Final answer
    x = 13,692.23

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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.