Home / 27,788.04-38,347.48-15,212.79

Finding the Fourth Proportional to 27,788.04, 38,347.48 and 15,212.79

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Solution

The fourth proportional to 27,788.04, 38,347.48 and 15,212.79 is: 20,993.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,788.04 : 38,347.48 = 15,212.79 : x
  2. Step 2: Convert to fraction form
    27,788.04/38,347.48 = 15,212.79/x
  3. Step 3: Cross multiply
    27,788.04x = 38,347.48 × 15,212.79
  4. Step 4: Simplify right side
    27,788.04x = 583,372,160.27
  5. Step 5: Solve for x
    x = 583,372,160.27/27,788.04
  6. Step 6: Final answer
    x = 20,993.64

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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.