Home / 34,215.24-47,230.38-20,788.68

Finding the Fourth Proportional to 34,215.24, 47,230.38 and 20,788.68

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Solution

The fourth proportional to 34,215.24, 47,230.38 and 20,788.68 is: 28,696.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    34,215.24 : 47,230.38 = 20,788.68 : x
  2. Step 2: Convert to fraction form
    34,215.24/47,230.38 = 20,788.68/x
  3. Step 3: Cross multiply
    34,215.24x = 47,230.38 × 20,788.68
  4. Step 4: Simplify right side
    34,215.24x = 981,857,256.10
  5. Step 5: Solve for x
    x = 981,857,256.10/34,215.24
  6. Step 6: Final answer
    x = 28,696.49

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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.