Home / 22,060.40-30,431.03-13,556.61

Finding the Fourth Proportional to 22,060.40, 30,431.03 and 13,556.61

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Solution

The fourth proportional to 22,060.40, 30,431.03 and 13,556.61 is: 18,700.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,060.40 : 30,431.03 = 13,556.61 : x
  2. Step 2: Convert to fraction form
    22,060.40/30,431.03 = 13,556.61/x
  3. Step 3: Cross multiply
    22,060.40x = 30,431.03 × 13,556.61
  4. Step 4: Simplify right side
    22,060.40x = 412,541,537.83
  5. Step 5: Solve for x
    x = 412,541,537.83/22,060.40
  6. Step 6: Final answer
    x = 18,700.55

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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.