Home / 27,811.14-38,379.42-15,064.36

Finding the Fourth Proportional to 27,811.14, 38,379.42 and 15,064.36

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Solution

The fourth proportional to 27,811.14, 38,379.42 and 15,064.36 is: 20,788.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,811.14 : 38,379.42 = 15,064.36 : x
  2. Step 2: Convert to fraction form
    27,811.14/38,379.42 = 15,064.36/x
  3. Step 3: Cross multiply
    27,811.14x = 38,379.42 × 15,064.36
  4. Step 4: Simplify right side
    27,811.14x = 578,161,399.47
  5. Step 5: Solve for x
    x = 578,161,399.47/27,811.14
  6. Step 6: Final answer
    x = 20,788.84

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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.