Home / 21,725.34-29,977.30-12,652.62

Finding the Fourth Proportional to 21,725.34, 29,977.30 and 12,652.62

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Solution

The fourth proportional to 21,725.34, 29,977.30 and 12,652.62 is: 17,458.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,725.34 : 29,977.30 = 12,652.62 : x
  2. Step 2: Convert to fraction form
    21,725.34/29,977.30 = 12,652.62/x
  3. Step 3: Cross multiply
    21,725.34x = 29,977.30 × 12,652.62
  4. Step 4: Simplify right side
    21,725.34x = 379,291,385.53
  5. Step 5: Solve for x
    x = 379,291,385.53/21,725.34
  6. Step 6: Final answer
    x = 17,458.48

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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.