Home / 39,965.16-59,957.11-11,885.43

Finding the Fourth Proportional to 39,965.16, 59,957.11 and 11,885.43

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Solution

The fourth proportional to 39,965.16, 59,957.11 and 11,885.43 is: 17,830.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,965.16 : 59,957.11 = 11,885.43 : x
  2. Step 2: Convert to fraction form
    39,965.16/59,957.11 = 11,885.43/x
  3. Step 3: Cross multiply
    39,965.16x = 59,957.11 × 11,885.43
  4. Step 4: Simplify right side
    39,965.16x = 712,616,273.60
  5. Step 5: Solve for x
    x = 712,616,273.60/39,965.16
  6. Step 6: Final answer
    x = 17,830.94

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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.