Home / 43,198-64,803.84-15,117.38

Finding the Fourth Proportional to 43,198, 64,803.84 and 15,117.38

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Solution

The fourth proportional to 43,198, 64,803.84 and 15,117.38 is: 22,678.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,198 : 64,803.84 = 15,117.38 : x
  2. Step 2: Convert to fraction form
    43,198/64,803.84 = 15,117.38/x
  3. Step 3: Cross multiply
    43,198x = 64,803.84 × 15,117.38
  4. Step 4: Simplify right side
    43,198x = 979,664,274.74
  5. Step 5: Solve for x
    x = 979,664,274.74/43,198
  6. Step 6: Final answer
    x = 22,678.46

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.