Home / 27,795.39-38,357.64-15,220.14

Finding the Fourth Proportional to 27,795.39, 38,357.64 and 15,220.14

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Solution

The fourth proportional to 27,795.39, 38,357.64 and 15,220.14 is: 21,003.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,795.39 : 38,357.64 = 15,220.14 : x
  2. Step 2: Convert to fraction form
    27,795.39/38,357.64 = 15,220.14/x
  3. Step 3: Cross multiply
    27,795.39x = 38,357.64 × 15,220.14
  4. Step 4: Simplify right side
    27,795.39x = 583,808,650.87
  5. Step 5: Solve for x
    x = 583,808,650.87/27,795.39
  6. Step 6: Final answer
    x = 21,003.79

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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.