Home / 22,458.60-30,998.70-13,516.20

Finding the Fourth Proportional to 22,458.60, 30,998.70 and 13,516.20

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Solution

The fourth proportional to 22,458.60, 30,998.70 and 13,516.20 is: 18,655.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,458.60 : 30,998.70 = 13,516.20 : x
  2. Step 2: Convert to fraction form
    22,458.60/30,998.70 = 13,516.20/x
  3. Step 3: Cross multiply
    22,458.60x = 30,998.70 × 13,516.20
  4. Step 4: Simplify right side
    22,458.60x = 418,984,628.94
  5. Step 5: Solve for x
    x = 418,984,628.94/22,458.60
  6. Step 6: Final answer
    x = 18,655.87

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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.