Home / 39,960.92-59,935.66-13,661.80

Finding the Fourth Proportional to 39,960.92, 59,935.66 and 13,661.80

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Solution

The fourth proportional to 39,960.92, 59,935.66 and 13,661.80 is: 20,490.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,960.92 : 59,935.66 = 13,661.80 : x
  2. Step 2: Convert to fraction form
    39,960.92/59,935.66 = 13,661.80/x
  3. Step 3: Cross multiply
    39,960.92x = 59,935.66 × 13,661.80
  4. Step 4: Simplify right side
    39,960.92x = 818,828,999.79
  5. Step 5: Solve for x
    x = 818,828,999.79/39,960.92
  6. Step 6: Final answer
    x = 20,490.74

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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.