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Finding the Fourth Proportional to 39,574, 59,361 and 11,872

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Solution

The fourth proportional to 39,574, 59,361 and 11,872 is: 17,808

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,574 : 59,361 = 11,872 : x
  2. Step 2: Convert to fraction form
    39,574/59,361 = 11,872/x
  3. Step 3: Cross multiply
    39,574x = 59,361 × 11,872
  4. Step 4: Simplify right side
    39,574x = 704,733,792
  5. Step 5: Solve for x
    x = 704,733,792/39,574
  6. Step 6: Final answer
    x = 17,808

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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.