Home / 21,377.00-29,499.66-11,945.57

Finding the Fourth Proportional to 21,377.00, 29,499.66 and 11,945.57

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Solution

The fourth proportional to 21,377.00, 29,499.66 and 11,945.57 is: 16,484.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,377.00 : 29,499.66 = 11,945.57 : x
  2. Step 2: Convert to fraction form
    21,377.00/29,499.66 = 11,945.57/x
  3. Step 3: Cross multiply
    21,377.00x = 29,499.66 × 11,945.57
  4. Step 4: Simplify right side
    21,377.00x = 352,390,106.01
  5. Step 5: Solve for x
    x = 352,390,106.01/21,377.00
  6. Step 6: Final answer
    x = 16,484.54

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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.