Home / 21,377.54-29,500.85-11,946.10

Finding the Fourth Proportional to 21,377.54, 29,500.85 and 11,946.10

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Solution

The fourth proportional to 21,377.54, 29,500.85 and 11,946.10 is: 16,485.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,377.54 : 29,500.85 = 11,946.10 : x
  2. Step 2: Convert to fraction form
    21,377.54/29,500.85 = 11,946.10/x
  3. Step 3: Cross multiply
    21,377.54x = 29,500.85 × 11,946.10
  4. Step 4: Simplify right side
    21,377.54x = 352,419,970.70
  5. Step 5: Solve for x
    x = 352,419,970.70/21,377.54
  6. Step 6: Final answer
    x = 16,485.53

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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.