Home / 21,787.50-30,062.16-14,244.90

Finding the Fourth Proportional to 21,787.50, 30,062.16 and 14,244.90

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Solution

The fourth proportional to 21,787.50, 30,062.16 and 14,244.90 is: 19,654.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,787.50 : 30,062.16 = 14,244.90 : x
  2. Step 2: Convert to fraction form
    21,787.50/30,062.16 = 14,244.90/x
  3. Step 3: Cross multiply
    21,787.50x = 30,062.16 × 14,244.90
  4. Step 4: Simplify right side
    21,787.50x = 428,232,462.98
  5. Step 5: Solve for x
    x = 428,232,462.98/21,787.50
  6. Step 6: Final answer
    x = 19,654.96

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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.