Home / 21,377.10-29,496.75-11,945.10

Finding the Fourth Proportional to 21,377.10, 29,496.75 and 11,945.10

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Solution

The fourth proportional to 21,377.10, 29,496.75 and 11,945.10 is: 16,482.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,377.10 : 29,496.75 = 11,945.10 : x
  2. Step 2: Convert to fraction form
    21,377.10/29,496.75 = 11,945.10/x
  3. Step 3: Cross multiply
    21,377.10x = 29,496.75 × 11,945.10
  4. Step 4: Simplify right side
    21,377.10x = 352,341,628.43
  5. Step 5: Solve for x
    x = 352,341,628.43/21,377.10
  6. Step 6: Final answer
    x = 16,482.20

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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.