Home / 22,230.96-30,703.92-15,145.08

Finding the Fourth Proportional to 22,230.96, 30,703.92 and 15,145.08

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Solution

The fourth proportional to 22,230.96, 30,703.92 and 15,145.08 is: 20,917.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,230.96 : 30,703.92 = 15,145.08 : x
  2. Step 2: Convert to fraction form
    22,230.96/30,703.92 = 15,145.08/x
  3. Step 3: Cross multiply
    22,230.96x = 30,703.92 × 15,145.08
  4. Step 4: Simplify right side
    22,230.96x = 465,013,324.71
  5. Step 5: Solve for x
    x = 465,013,324.71/22,230.96
  6. Step 6: Final answer
    x = 20,917.37

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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.