Home / 20,228.88-27,916.02-11,732.76

Finding the Fourth Proportional to 20,228.88, 27,916.02 and 11,732.76

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Solution

The fourth proportional to 20,228.88, 27,916.02 and 11,732.76 is: 16,191.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,228.88 : 27,916.02 = 11,732.76 : x
  2. Step 2: Convert to fraction form
    20,228.88/27,916.02 = 11,732.76/x
  3. Step 3: Cross multiply
    20,228.88x = 27,916.02 × 11,732.76
  4. Step 4: Simplify right side
    20,228.88x = 327,531,962.82
  5. Step 5: Solve for x
    x = 327,531,962.82/20,228.88
  6. Step 6: Final answer
    x = 16,191.30

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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.