Home / 28,236.15-42,361.43-19,932.35

Finding the Fourth Proportional to 28,236.15, 42,361.43 and 19,932.35

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Solution

The fourth proportional to 28,236.15, 42,361.43 and 19,932.35 is: 29,903.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,236.15 : 42,361.43 = 19,932.35 : x
  2. Step 2: Convert to fraction form
    28,236.15/42,361.43 = 19,932.35/x
  3. Step 3: Cross multiply
    28,236.15x = 42,361.43 × 19,932.35
  4. Step 4: Simplify right side
    28,236.15x = 844,362,537.79
  5. Step 5: Solve for x
    x = 844,362,537.79/28,236.15
  6. Step 6: Final answer
    x = 29,903.60

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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.