Home / 39,960.90-59,935.68-13,661.82

Finding the Fourth Proportional to 39,960.90, 59,935.68 and 13,661.82

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Solution

The fourth proportional to 39,960.90, 59,935.68 and 13,661.82 is: 20,490.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,960.90 : 59,935.68 = 13,661.82 : x
  2. Step 2: Convert to fraction form
    39,960.90/59,935.68 = 13,661.82/x
  3. Step 3: Cross multiply
    39,960.90x = 59,935.68 × 13,661.82
  4. Step 4: Simplify right side
    39,960.90x = 818,830,471.74
  5. Step 5: Solve for x
    x = 818,830,471.74/39,960.90
  6. Step 6: Final answer
    x = 20,490.79

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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.