Home / 19,943.72-27,503.14-13,125.54

Finding the Fourth Proportional to 19,943.72, 27,503.14 and 13,125.54

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Solution

The fourth proportional to 19,943.72, 27,503.14 and 13,125.54 is: 18,100.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,943.72 : 27,503.14 = 13,125.54 : x
  2. Step 2: Convert to fraction form
    19,943.72/27,503.14 = 13,125.54/x
  3. Step 3: Cross multiply
    19,943.72x = 27,503.14 × 13,125.54
  4. Step 4: Simplify right side
    19,943.72x = 360,993,564.20
  5. Step 5: Solve for x
    x = 360,993,564.20/19,943.72
  6. Step 6: Final answer
    x = 18,100.61

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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.