Home / 27,111.80-40,635.30-13,957.40

Finding the Fourth Proportional to 27,111.80, 40,635.30 and 13,957.40

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Solution

The fourth proportional to 27,111.80, 40,635.30 and 13,957.40 is: 20,919.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,111.80 : 40,635.30 = 13,957.40 : x
  2. Step 2: Convert to fraction form
    27,111.80/40,635.30 = 13,957.40/x
  3. Step 3: Cross multiply
    27,111.80x = 40,635.30 × 13,957.40
  4. Step 4: Simplify right side
    27,111.80x = 567,163,136.22
  5. Step 5: Solve for x
    x = 567,163,136.22/27,111.80
  6. Step 6: Final answer
    x = 20,919.42

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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.