Home / 20,946.64-31,425.36-6,156.04

Finding the Fourth Proportional to 20,946.64, 31,425.36 and 6,156.04

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Solution

The fourth proportional to 20,946.64, 31,425.36 and 6,156.04 is: 9,235.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,946.64 : 31,425.36 = 6,156.04 : x
  2. Step 2: Convert to fraction form
    20,946.64/31,425.36 = 6,156.04/x
  3. Step 3: Cross multiply
    20,946.64x = 31,425.36 × 6,156.04
  4. Step 4: Simplify right side
    20,946.64x = 193,455,773.17
  5. Step 5: Solve for x
    x = 193,455,773.17/20,946.64
  6. Step 6: Final answer
    x = 9,235.65

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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.