Home / 21,491.22-29,659.05-12,059.58

Finding the Fourth Proportional to 21,491.22, 29,659.05 and 12,059.58

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Solution

The fourth proportional to 21,491.22, 29,659.05 and 12,059.58 is: 16,642.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,491.22 : 29,659.05 = 12,059.58 : x
  2. Step 2: Convert to fraction form
    21,491.22/29,659.05 = 12,059.58/x
  3. Step 3: Cross multiply
    21,491.22x = 29,659.05 × 12,059.58
  4. Step 4: Simplify right side
    21,491.22x = 357,675,686.20
  5. Step 5: Solve for x
    x = 357,675,686.20/21,491.22
  6. Step 6: Final answer
    x = 16,642.87

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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.