Home / 21,154.17-31,731.84-6,160.70

Finding the Fourth Proportional to 21,154.17, 31,731.84 and 6,160.70

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Solution

The fourth proportional to 21,154.17, 31,731.84 and 6,160.70 is: 9,241.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,154.17 : 31,731.84 = 6,160.70 : x
  2. Step 2: Convert to fraction form
    21,154.17/31,731.84 = 6,160.70/x
  3. Step 3: Cross multiply
    21,154.17x = 31,731.84 × 6,160.70
  4. Step 4: Simplify right side
    21,154.17x = 195,490,188.03
  5. Step 5: Solve for x
    x = 195,490,188.03/21,154.17
  6. Step 6: Final answer
    x = 9,241.21

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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.