Home / 20,229.73-27,916.63-11,276.70

Finding the Fourth Proportional to 20,229.73, 27,916.63 and 11,276.70

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Solution

The fourth proportional to 20,229.73, 27,916.63 and 11,276.70 is: 15,561.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,229.73 : 27,916.63 = 11,276.70 : x
  2. Step 2: Convert to fraction form
    20,229.73/27,916.63 = 11,276.70/x
  3. Step 3: Cross multiply
    20,229.73x = 27,916.63 × 11,276.70
  4. Step 4: Simplify right side
    20,229.73x = 314,807,549.10
  5. Step 5: Solve for x
    x = 314,807,549.10/20,229.73
  6. Step 6: Final answer
    x = 15,561.63

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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.