Home / 27,795.76-38,357.78-15,220.52

Finding the Fourth Proportional to 27,795.76, 38,357.78 and 15,220.52

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Solution

The fourth proportional to 27,795.76, 38,357.78 and 15,220.52 is: 21,004.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,795.76 : 38,357.78 = 15,220.52 : x
  2. Step 2: Convert to fraction form
    27,795.76/38,357.78 = 15,220.52/x
  3. Step 3: Cross multiply
    27,795.76x = 38,357.78 × 15,220.52
  4. Step 4: Simplify right side
    27,795.76x = 583,825,357.65
  5. Step 5: Solve for x
    x = 583,825,357.65/27,795.76
  6. Step 6: Final answer
    x = 21,004.12

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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.