Home / 27,514.34-37,969.68-15,578.79

Finding the Fourth Proportional to 27,514.34, 37,969.68 and 15,578.79

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Solution

The fourth proportional to 27,514.34, 37,969.68 and 15,578.79 is: 21,498.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,514.34 : 37,969.68 = 15,578.79 : x
  2. Step 2: Convert to fraction form
    27,514.34/37,969.68 = 15,578.79/x
  3. Step 3: Cross multiply
    27,514.34x = 37,969.68 × 15,578.79
  4. Step 4: Simplify right side
    27,514.34x = 591,521,671.09
  5. Step 5: Solve for x
    x = 591,521,671.09/27,514.34
  6. Step 6: Final answer
    x = 21,498.67

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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.