Home / 26,643.30-39,986.55-25,779.30

Finding the Fourth Proportional to 26,643.30, 39,986.55 and 25,779.30

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Solution

The fourth proportional to 26,643.30, 39,986.55 and 25,779.30 is: 38,689.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,643.30 : 39,986.55 = 25,779.30 : x
  2. Step 2: Convert to fraction form
    26,643.30/39,986.55 = 25,779.30/x
  3. Step 3: Cross multiply
    26,643.30x = 39,986.55 × 25,779.30
  4. Step 4: Simplify right side
    26,643.30x = 1,030,825,268.42
  5. Step 5: Solve for x
    x = 1,030,825,268.42/26,643.30
  6. Step 6: Final answer
    x = 38,689.85

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.