Home / 20,414.48-28,165.80-11,461.04

Finding the Fourth Proportional to 20,414.48, 28,165.80 and 11,461.04

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Solution

The fourth proportional to 20,414.48, 28,165.80 and 11,461.04 is: 15,812.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,414.48 : 28,165.80 = 11,461.04 : x
  2. Step 2: Convert to fraction form
    20,414.48/28,165.80 = 11,461.04/x
  3. Step 3: Cross multiply
    20,414.48x = 28,165.80 × 11,461.04
  4. Step 4: Simplify right side
    20,414.48x = 322,809,360.43
  5. Step 5: Solve for x
    x = 322,809,360.43/20,414.48
  6. Step 6: Final answer
    x = 15,812.76

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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.