Home / 28,551.22-39,398.21-15,804.42

Finding the Fourth Proportional to 28,551.22, 39,398.21 and 15,804.42

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Solution

The fourth proportional to 28,551.22, 39,398.21 and 15,804.42 is: 21,808.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,551.22 : 39,398.21 = 15,804.42 : x
  2. Step 2: Convert to fraction form
    28,551.22/39,398.21 = 15,804.42/x
  3. Step 3: Cross multiply
    28,551.22x = 39,398.21 × 15,804.42
  4. Step 4: Simplify right side
    28,551.22x = 622,665,779.49
  5. Step 5: Solve for x
    x = 622,665,779.49/28,551.22
  6. Step 6: Final answer
    x = 21,808.73

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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.