Home / 21,493.64-29,664.12-12,062.72

Finding the Fourth Proportional to 21,493.64, 29,664.12 and 12,062.72

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Solution

The fourth proportional to 21,493.64, 29,664.12 and 12,062.72 is: 16,648.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,493.64 : 29,664.12 = 12,062.72 : x
  2. Step 2: Convert to fraction form
    21,493.64/29,664.12 = 12,062.72/x
  3. Step 3: Cross multiply
    21,493.64x = 29,664.12 × 12,062.72
  4. Step 4: Simplify right side
    21,493.64x = 357,829,973.61
  5. Step 5: Solve for x
    x = 357,829,973.61/21,493.64
  6. Step 6: Final answer
    x = 16,648.18

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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.