Home / 21,787.56-30,049.38-14,233.32

Finding the Fourth Proportional to 21,787.56, 30,049.38 and 14,233.32

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Solution

The fourth proportional to 21,787.56, 30,049.38 and 14,233.32 is: 19,630.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,787.56 : 30,049.38 = 14,233.32 : x
  2. Step 2: Convert to fraction form
    21,787.56/30,049.38 = 14,233.32/x
  3. Step 3: Cross multiply
    21,787.56x = 30,049.38 × 14,233.32
  4. Step 4: Simplify right side
    21,787.56x = 427,702,441.34
  5. Step 5: Solve for x
    x = 427,702,441.34/21,787.56
  6. Step 6: Final answer
    x = 19,630.58

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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.