Home / 21,715.44-29,967.36-11,779.44

Finding the Fourth Proportional to 21,715.44, 29,967.36 and 11,779.44

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Solution

The fourth proportional to 21,715.44, 29,967.36 and 11,779.44 is: 16,255.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,715.44 : 29,967.36 = 11,779.44 : x
  2. Step 2: Convert to fraction form
    21,715.44/29,967.36 = 11,779.44/x
  3. Step 3: Cross multiply
    21,715.44x = 29,967.36 × 11,779.44
  4. Step 4: Simplify right side
    21,715.44x = 352,998,719.08
  5. Step 5: Solve for x
    x = 352,998,719.08/21,715.44
  6. Step 6: Final answer
    x = 16,255.66

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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.