Home / 21,933.70-30,268.20-12,502.42

Finding the Fourth Proportional to 21,933.70, 30,268.20 and 12,502.42

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Solution

The fourth proportional to 21,933.70, 30,268.20 and 12,502.42 is: 17,253.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,933.70 : 30,268.20 = 12,502.42 : x
  2. Step 2: Convert to fraction form
    21,933.70/30,268.20 = 12,502.42/x
  3. Step 3: Cross multiply
    21,933.70x = 30,268.20 × 12,502.42
  4. Step 4: Simplify right side
    21,933.70x = 378,425,749.04
  5. Step 5: Solve for x
    x = 378,425,749.04/21,933.70
  6. Step 6: Final answer
    x = 17,253.17

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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.