Home / 40,298.70-60,464.58-21,318.38

Finding the Fourth Proportional to 40,298.70, 60,464.58 and 21,318.38

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Solution

The fourth proportional to 40,298.70, 60,464.58 and 21,318.38 is: 31,986.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,298.70 : 60,464.58 = 21,318.38 : x
  2. Step 2: Convert to fraction form
    40,298.70/60,464.58 = 21,318.38/x
  3. Step 3: Cross multiply
    40,298.70x = 60,464.58 × 21,318.38
  4. Step 4: Simplify right side
    40,298.70x = 1,289,007,044.14
  5. Step 5: Solve for x
    x = 1,289,007,044.14/40,298.70
  6. Step 6: Final answer
    x = 31,986.32

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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.