Home / 27,379.14-37,779.48-15,278.22

Finding the Fourth Proportional to 27,379.14, 37,779.48 and 15,278.22

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Solution

The fourth proportional to 27,379.14, 37,779.48 and 15,278.22 is: 21,081.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,379.14 : 37,779.48 = 15,278.22 : x
  2. Step 2: Convert to fraction form
    27,379.14/37,779.48 = 15,278.22/x
  3. Step 3: Cross multiply
    27,379.14x = 37,779.48 × 15,278.22
  4. Step 4: Simplify right side
    27,379.14x = 577,203,206.93
  5. Step 5: Solve for x
    x = 577,203,206.93/27,379.14
  6. Step 6: Final answer
    x = 21,081.86

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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.