Home / 40,421.58-55,779.57-22,268.75

Finding the Fourth Proportional to 40,421.58, 55,779.57 and 22,268.75

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Solution

The fourth proportional to 40,421.58, 55,779.57 and 22,268.75 is: 30,729.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,421.58 : 55,779.57 = 22,268.75 : x
  2. Step 2: Convert to fraction form
    40,421.58/55,779.57 = 22,268.75/x
  3. Step 3: Cross multiply
    40,421.58x = 55,779.57 × 22,268.75
  4. Step 4: Simplify right side
    40,421.58x = 1,242,141,020.54
  5. Step 5: Solve for x
    x = 1,242,141,020.54/40,421.58
  6. Step 6: Final answer
    x = 30,729.65

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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.