Home / 21,462.44-29,619.42-16,147.76

Finding the Fourth Proportional to 21,462.44, 29,619.42 and 16,147.76

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Solution

The fourth proportional to 21,462.44, 29,619.42 and 16,147.76 is: 22,284.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,462.44 : 29,619.42 = 16,147.76 : x
  2. Step 2: Convert to fraction form
    21,462.44/29,619.42 = 16,147.76/x
  3. Step 3: Cross multiply
    21,462.44x = 29,619.42 × 16,147.76
  4. Step 4: Simplify right side
    21,462.44x = 478,287,285.50
  5. Step 5: Solve for x
    x = 478,287,285.50/21,462.44
  6. Step 6: Final answer
    x = 22,284.85

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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.