Home / 21,601.29-32,328.78-13,286.58

Finding the Fourth Proportional to 21,601.29, 32,328.78 and 13,286.58

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Solution

The fourth proportional to 21,601.29, 32,328.78 and 13,286.58 is: 19,884.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,601.29 : 32,328.78 = 13,286.58 : x
  2. Step 2: Convert to fraction form
    21,601.29/32,328.78 = 13,286.58/x
  3. Step 3: Cross multiply
    21,601.29x = 32,328.78 × 13,286.58
  4. Step 4: Simplify right side
    21,601.29x = 429,538,921.77
  5. Step 5: Solve for x
    x = 429,538,921.77/21,601.29
  6. Step 6: Final answer
    x = 19,884.87

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.