Home / 40,318.73-55,643.21-22,415.40

Finding the Fourth Proportional to 40,318.73, 55,643.21 and 22,415.40

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Solution

The fourth proportional to 40,318.73, 55,643.21 and 22,415.40 is: 30,935.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,318.73 : 55,643.21 = 22,415.40 : x
  2. Step 2: Convert to fraction form
    40,318.73/55,643.21 = 22,415.40/x
  3. Step 3: Cross multiply
    40,318.73x = 55,643.21 × 22,415.40
  4. Step 4: Simplify right side
    40,318.73x = 1,247,264,488.69
  5. Step 5: Solve for x
    x = 1,247,264,488.69/40,318.73
  6. Step 6: Final answer
    x = 30,935.12

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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.