Home / 19,997.51-30,000.31-5,957.78

Finding the Fourth Proportional to 19,997.51, 30,000.31 and 5,957.78

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Solution

The fourth proportional to 19,997.51, 30,000.31 and 5,957.78 is: 8,937.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,997.51 : 30,000.31 = 5,957.78 : x
  2. Step 2: Convert to fraction form
    19,997.51/30,000.31 = 5,957.78/x
  3. Step 3: Cross multiply
    19,997.51x = 30,000.31 × 5,957.78
  4. Step 4: Simplify right side
    19,997.51x = 178,735,082.02
  5. Step 5: Solve for x
    x = 178,735,082.02/19,997.51
  6. Step 6: Final answer
    x = 8,937.87

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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.