Home / 21,338.33-29,448.85-11,779.93

Finding the Fourth Proportional to 21,338.33, 29,448.85 and 11,779.93

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Solution

The fourth proportional to 21,338.33, 29,448.85 and 11,779.93 is: 16,257.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,338.33 : 29,448.85 = 11,779.93 : x
  2. Step 2: Convert to fraction form
    21,338.33/29,448.85 = 11,779.93/x
  3. Step 3: Cross multiply
    21,338.33x = 29,448.85 × 11,779.93
  4. Step 4: Simplify right side
    21,338.33x = 346,905,244.34
  5. Step 5: Solve for x
    x = 346,905,244.34/21,338.33
  6. Step 6: Final answer
    x = 16,257.38

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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.