Home / 20,094.70-27,730.92-11,142.31

Finding the Fourth Proportional to 20,094.70, 27,730.92 and 11,142.31

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Solution

The fourth proportional to 20,094.70, 27,730.92 and 11,142.31 is: 15,376.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,094.70 : 27,730.92 = 11,142.31 : x
  2. Step 2: Convert to fraction form
    20,094.70/27,730.92 = 11,142.31/x
  3. Step 3: Cross multiply
    20,094.70x = 27,730.92 × 11,142.31
  4. Step 4: Simplify right side
    20,094.70x = 308,986,507.23
  5. Step 5: Solve for x
    x = 308,986,507.23/20,094.70
  6. Step 6: Final answer
    x = 15,376.52

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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.