Home / 20,203.04-27,880.12-11,250.65

Finding the Fourth Proportional to 20,203.04, 27,880.12 and 11,250.65

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Solution

The fourth proportional to 20,203.04, 27,880.12 and 11,250.65 is: 15,525.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,203.04 : 27,880.12 = 11,250.65 : x
  2. Step 2: Convert to fraction form
    20,203.04/27,880.12 = 11,250.65/x
  3. Step 3: Cross multiply
    20,203.04x = 27,880.12 × 11,250.65
  4. Step 4: Simplify right side
    20,203.04x = 313,669,472.08
  5. Step 5: Solve for x
    x = 313,669,472.08/20,203.04
  6. Step 6: Final answer
    x = 15,525.86

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.