Home / 20,192.49-27,862.65-11,240.10

Finding the Fourth Proportional to 20,192.49, 27,862.65 and 11,240.10

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Solution

The fourth proportional to 20,192.49, 27,862.65 and 11,240.10 is: 15,509.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,192.49 : 27,862.65 = 11,240.10 : x
  2. Step 2: Convert to fraction form
    20,192.49/27,862.65 = 11,240.10/x
  3. Step 3: Cross multiply
    20,192.49x = 27,862.65 × 11,240.10
  4. Step 4: Simplify right side
    20,192.49x = 313,178,972.27
  5. Step 5: Solve for x
    x = 313,178,972.27/20,192.49
  6. Step 6: Final answer
    x = 15,509.68

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.