Home / 29,939.79-41,315.14-16,511.20

Finding the Fourth Proportional to 29,939.79, 41,315.14 and 16,511.20

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Solution

The fourth proportional to 29,939.79, 41,315.14 and 16,511.20 is: 22,784.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    29,939.79 : 41,315.14 = 16,511.20 : x
  2. Step 2: Convert to fraction form
    29,939.79/41,315.14 = 16,511.20/x
  3. Step 3: Cross multiply
    29,939.79x = 41,315.14 × 16,511.20
  4. Step 4: Simplify right side
    29,939.79x = 682,162,539.57
  5. Step 5: Solve for x
    x = 682,162,539.57/29,939.79
  6. Step 6: Final answer
    x = 22,784.48

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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.