Home / 21,159.52-29,202.24-12,207.44

Finding the Fourth Proportional to 21,159.52, 29,202.24 and 12,207.44

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Solution

The fourth proportional to 21,159.52, 29,202.24 and 12,207.44 is: 16,847.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,159.52 : 29,202.24 = 12,207.44 : x
  2. Step 2: Convert to fraction form
    21,159.52/29,202.24 = 12,207.44/x
  3. Step 3: Cross multiply
    21,159.52x = 29,202.24 × 12,207.44
  4. Step 4: Simplify right side
    21,159.52x = 356,484,592.67
  5. Step 5: Solve for x
    x = 356,484,592.67/21,159.52
  6. Step 6: Final answer
    x = 16,847.48

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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.