Home / 21,833.45-30,099.65-18,462.74

Finding the Fourth Proportional to 21,833.45, 30,099.65 and 18,462.74

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Solution

The fourth proportional to 21,833.45, 30,099.65 and 18,462.74 is: 25,452.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,833.45 : 30,099.65 = 18,462.74 : x
  2. Step 2: Convert to fraction form
    21,833.45/30,099.65 = 18,462.74/x
  3. Step 3: Cross multiply
    21,833.45x = 30,099.65 × 18,462.74
  4. Step 4: Simplify right side
    21,833.45x = 555,721,873.08
  5. Step 5: Solve for x
    x = 555,721,873.08/21,833.45
  6. Step 6: Final answer
    x = 25,452.78

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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.