Home / 21,591.30-29,795.43-12,031.23

Finding the Fourth Proportional to 21,591.30, 29,795.43 and 12,031.23

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Solution

The fourth proportional to 21,591.30, 29,795.43 and 12,031.23 is: 16,602.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,591.30 : 29,795.43 = 12,031.23 : x
  2. Step 2: Convert to fraction form
    21,591.30/29,795.43 = 12,031.23/x
  3. Step 3: Cross multiply
    21,591.30x = 29,795.43 × 12,031.23
  4. Step 4: Simplify right side
    21,591.30x = 358,475,671.28
  5. Step 5: Solve for x
    x = 358,475,671.28/21,591.30
  6. Step 6: Final answer
    x = 16,602.78

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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.