Home / 27,779.60-38,296.32-17,163.20

Finding the Fourth Proportional to 27,779.60, 38,296.32 and 17,163.20

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Solution

The fourth proportional to 27,779.60, 38,296.32 and 17,163.20 is: 23,660.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,779.60 : 38,296.32 = 17,163.20 : x
  2. Step 2: Convert to fraction form
    27,779.60/38,296.32 = 17,163.20/x
  3. Step 3: Cross multiply
    27,779.60x = 38,296.32 × 17,163.20
  4. Step 4: Simplify right side
    27,779.60x = 657,287,399.42
  5. Step 5: Solve for x
    x = 657,287,399.42/27,779.60
  6. Step 6: Final answer
    x = 23,660.79

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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.