Home / 38,286.59-52,835.54-21,290.47

Finding the Fourth Proportional to 38,286.59, 52,835.54 and 21,290.47

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Solution

The fourth proportional to 38,286.59, 52,835.54 and 21,290.47 is: 29,380.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,286.59 : 52,835.54 = 21,290.47 : x
  2. Step 2: Convert to fraction form
    38,286.59/52,835.54 = 21,290.47/x
  3. Step 3: Cross multiply
    38,286.59x = 52,835.54 × 21,290.47
  4. Step 4: Simplify right side
    38,286.59x = 1,124,893,240.76
  5. Step 5: Solve for x
    x = 1,124,893,240.76/38,286.59
  6. Step 6: Final answer
    x = 29,380.87

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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.