Home / 20,309.42-27,964.68-17,777.36

Finding the Fourth Proportional to 20,309.42, 27,964.68 and 17,777.36

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Solution

The fourth proportional to 20,309.42, 27,964.68 and 17,777.36 is: 24,478.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,309.42 : 27,964.68 = 17,777.36 : x
  2. Step 2: Convert to fraction form
    20,309.42/27,964.68 = 17,777.36/x
  3. Step 3: Cross multiply
    20,309.42x = 27,964.68 × 17,777.36
  4. Step 4: Simplify right side
    20,309.42x = 497,138,043.82
  5. Step 5: Solve for x
    x = 497,138,043.82/20,309.42
  6. Step 6: Final answer
    x = 24,478.21

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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.