Home / 28,193.31-42,268.10-11,557.53

Finding the Fourth Proportional to 28,193.31, 42,268.10 and 11,557.53

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Solution

The fourth proportional to 28,193.31, 42,268.10 and 11,557.53 is: 17,327.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,193.31 : 42,268.10 = 11,557.53 : x
  2. Step 2: Convert to fraction form
    28,193.31/42,268.10 = 11,557.53/x
  3. Step 3: Cross multiply
    28,193.31x = 42,268.10 × 11,557.53
  4. Step 4: Simplify right side
    28,193.31x = 488,514,776.01
  5. Step 5: Solve for x
    x = 488,514,776.01/28,193.31
  6. Step 6: Final answer
    x = 17,327.33

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1.5x scale

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.