Home / 21,591.78-29,794.59-12,031.26

Finding the Fourth Proportional to 21,591.78, 29,794.59 and 12,031.26

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Solution

The fourth proportional to 21,591.78, 29,794.59 and 12,031.26 is: 16,601.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,591.78 : 29,794.59 = 12,031.26 : x
  2. Step 2: Convert to fraction form
    21,591.78/29,794.59 = 12,031.26/x
  3. Step 3: Cross multiply
    21,591.78x = 29,794.59 × 12,031.26
  4. Step 4: Simplify right side
    21,591.78x = 358,466,458.88
  5. Step 5: Solve for x
    x = 358,466,458.88/21,591.78
  6. Step 6: Final answer
    x = 16,601.99

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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.