Home / 21,682.31-32,492.25-12,776.63

Finding the Fourth Proportional to 21,682.31, 32,492.25 and 12,776.63

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Solution

The fourth proportional to 21,682.31, 32,492.25 and 12,776.63 is: 19,146.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,682.31 : 32,492.25 = 12,776.63 : x
  2. Step 2: Convert to fraction form
    21,682.31/32,492.25 = 12,776.63/x
  3. Step 3: Cross multiply
    21,682.31x = 32,492.25 × 12,776.63
  4. Step 4: Simplify right side
    21,682.31x = 415,141,293.66
  5. Step 5: Solve for x
    x = 415,141,293.66/21,682.31
  6. Step 6: Final answer
    x = 19,146.55

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.