Home / 20,158.16-27,817.36-11,206.24

Finding the Fourth Proportional to 20,158.16, 27,817.36 and 11,206.24

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Solution

The fourth proportional to 20,158.16, 27,817.36 and 11,206.24 is: 15,464.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,158.16 : 27,817.36 = 11,206.24 : x
  2. Step 2: Convert to fraction form
    20,158.16/27,817.36 = 11,206.24/x
  3. Step 3: Cross multiply
    20,158.16x = 27,817.36 × 11,206.24
  4. Step 4: Simplify right side
    20,158.16x = 311,728,012.33
  5. Step 5: Solve for x
    x = 311,728,012.33/20,158.16
  6. Step 6: Final answer
    x = 15,464.11

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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.