Home / 20,156.46-27,814.70-11,203.65

Finding the Fourth Proportional to 20,156.46, 27,814.70 and 11,203.65

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Solution

The fourth proportional to 20,156.46, 27,814.70 and 11,203.65 is: 15,460.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,156.46 : 27,814.70 = 11,203.65 : x
  2. Step 2: Convert to fraction form
    20,156.46/27,814.70 = 11,203.65/x
  3. Step 3: Cross multiply
    20,156.46x = 27,814.70 × 11,203.65
  4. Step 4: Simplify right side
    20,156.46x = 311,626,191.66
  5. Step 5: Solve for x
    x = 311,626,191.66/20,156.46
  6. Step 6: Final answer
    x = 15,460.37

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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.