Home / 20,414.02-28,171.79-11,461.77

Finding the Fourth Proportional to 20,414.02, 28,171.79 and 11,461.77

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Solution

The fourth proportional to 20,414.02, 28,171.79 and 11,461.77 is: 15,817.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,414.02 : 28,171.79 = 11,461.77 : x
  2. Step 2: Convert to fraction form
    20,414.02/28,171.79 = 11,461.77/x
  3. Step 3: Cross multiply
    20,414.02x = 28,171.79 × 11,461.77
  4. Step 4: Simplify right side
    20,414.02x = 322,898,577.47
  5. Step 5: Solve for x
    x = 322,898,577.47/20,414.02
  6. Step 6: Final answer
    x = 15,817.49

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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.