Home / 27,645.56-38,149.71-16,315.47

Finding the Fourth Proportional to 27,645.56, 38,149.71 and 16,315.47

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Solution

The fourth proportional to 27,645.56, 38,149.71 and 16,315.47 is: 22,514.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,645.56 : 38,149.71 = 16,315.47 : x
  2. Step 2: Convert to fraction form
    27,645.56/38,149.71 = 16,315.47/x
  3. Step 3: Cross multiply
    27,645.56x = 38,149.71 × 16,315.47
  4. Step 4: Simplify right side
    27,645.56x = 622,430,449.01
  5. Step 5: Solve for x
    x = 622,430,449.01/27,645.56
  6. Step 6: Final answer
    x = 22,514.67

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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.