Home / 25,860.24-35,651.88-20,779.92

Finding the Fourth Proportional to 25,860.24, 35,651.88 and 20,779.92

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Solution

The fourth proportional to 25,860.24, 35,651.88 and 20,779.92 is: 28,647.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,860.24 : 35,651.88 = 20,779.92 : x
  2. Step 2: Convert to fraction form
    25,860.24/35,651.88 = 20,779.92/x
  3. Step 3: Cross multiply
    25,860.24x = 35,651.88 × 20,779.92
  4. Step 4: Simplify right side
    25,860.24x = 740,843,214.25
  5. Step 5: Solve for x
    x = 740,843,214.25/25,860.24
  6. Step 6: Final answer
    x = 28,647.96

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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.