Home / 39,960.96-59,941.40-13,665.92

Finding the Fourth Proportional to 39,960.96, 59,941.40 and 13,665.92

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Solution

The fourth proportional to 39,960.96, 59,941.40 and 13,665.92 is: 20,498.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,960.96 : 59,941.40 = 13,665.92 : x
  2. Step 2: Convert to fraction form
    39,960.96/59,941.40 = 13,665.92/x
  3. Step 3: Cross multiply
    39,960.96x = 59,941.40 × 13,665.92
  4. Step 4: Simplify right side
    39,960.96x = 819,154,377.09
  5. Step 5: Solve for x
    x = 819,154,377.09/39,960.96
  6. Step 6: Final answer
    x = 20,498.87

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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.