Home / 19,976.55-27,561.21-13,263.48

Finding the Fourth Proportional to 19,976.55, 27,561.21 and 13,263.48

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Solution

The fourth proportional to 19,976.55, 27,561.21 and 13,263.48 is: 18,299.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,976.55 : 27,561.21 = 13,263.48 : x
  2. Step 2: Convert to fraction form
    19,976.55/27,561.21 = 13,263.48/x
  3. Step 3: Cross multiply
    19,976.55x = 27,561.21 × 13,263.48
  4. Step 4: Simplify right side
    19,976.55x = 365,557,557.61
  5. Step 5: Solve for x
    x = 365,557,557.61/19,976.55
  6. Step 6: Final answer
    x = 18,299.33

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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.