Home / 39,965.40-59,942.43-13,666.32

Finding the Fourth Proportional to 39,965.40, 59,942.43 and 13,666.32

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Solution

The fourth proportional to 39,965.40, 59,942.43 and 13,666.32 is: 20,497.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,965.40 : 59,942.43 = 13,666.32 : x
  2. Step 2: Convert to fraction form
    39,965.40/59,942.43 = 13,666.32/x
  3. Step 3: Cross multiply
    39,965.40x = 59,942.43 × 13,666.32
  4. Step 4: Simplify right side
    39,965.40x = 819,192,429.96
  5. Step 5: Solve for x
    x = 819,192,429.96/39,965.40
  6. Step 6: Final answer
    x = 20,497.54

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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.