Home / 22,199.55-30,606.80-15,833.40

Finding the Fourth Proportional to 22,199.55, 30,606.80 and 15,833.40

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Solution

The fourth proportional to 22,199.55, 30,606.80 and 15,833.40 is: 21,829.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,199.55 : 30,606.80 = 15,833.40 : x
  2. Step 2: Convert to fraction form
    22,199.55/30,606.80 = 15,833.40/x
  3. Step 3: Cross multiply
    22,199.55x = 30,606.80 × 15,833.40
  4. Step 4: Simplify right side
    22,199.55x = 484,609,627.95
  5. Step 5: Solve for x
    x = 484,609,627.95/22,199.55
  6. Step 6: Final answer
    x = 21,829.71

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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.