Home / 38,286.76-52,835.88-21,518.68

Finding the Fourth Proportional to 38,286.76, 52,835.88 and 21,518.68

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Solution

The fourth proportional to 38,286.76, 52,835.88 and 21,518.68 is: 29,695.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,286.76 : 52,835.88 = 21,518.68 : x
  2. Step 2: Convert to fraction form
    38,286.76/52,835.88 = 21,518.68/x
  3. Step 3: Cross multiply
    38,286.76x = 52,835.88 × 21,518.68
  4. Step 4: Simplify right side
    38,286.76x = 1,136,958,394.24
  5. Step 5: Solve for x
    x = 1,136,958,394.24/38,286.76
  6. Step 6: Final answer
    x = 29,695.86

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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.