Home / 19,972.37-27,561.80-11,019.79

Finding the Fourth Proportional to 19,972.37, 27,561.80 and 11,019.79

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Solution

The fourth proportional to 19,972.37, 27,561.80 and 11,019.79 is: 15,207.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,972.37 : 27,561.80 = 11,019.79 : x
  2. Step 2: Convert to fraction form
    19,972.37/27,561.80 = 11,019.79/x
  3. Step 3: Cross multiply
    19,972.37x = 27,561.80 × 11,019.79
  4. Step 4: Simplify right side
    19,972.37x = 303,725,206.67
  5. Step 5: Solve for x
    x = 303,725,206.67/19,972.37
  6. Step 6: Final answer
    x = 15,207.27

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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.