Home / 20,690.24-28,581.76-16,034.56

Finding the Fourth Proportional to 20,690.24, 28,581.76 and 16,034.56

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Solution

The fourth proportional to 20,690.24, 28,581.76 and 16,034.56 is: 22,150.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,690.24 : 28,581.76 = 16,034.56 : x
  2. Step 2: Convert to fraction form
    20,690.24/28,581.76 = 16,034.56/x
  3. Step 3: Cross multiply
    20,690.24x = 28,581.76 × 16,034.56
  4. Step 4: Simplify right side
    20,690.24x = 458,295,945.63
  5. Step 5: Solve for x
    x = 458,295,945.63/20,690.24
  6. Step 6: Final answer
    x = 22,150.34

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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.