Home / 21,076.29-31,614.42-6,847.62

Finding the Fourth Proportional to 21,076.29, 31,614.42 and 6,847.62

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Solution

The fourth proportional to 21,076.29, 31,614.42 and 6,847.62 is: 10,271.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,076.29 : 31,614.42 = 6,847.62 : x
  2. Step 2: Convert to fraction form
    21,076.29/31,614.42 = 6,847.62/x
  3. Step 3: Cross multiply
    21,076.29x = 31,614.42 × 6,847.62
  4. Step 4: Simplify right side
    21,076.29x = 216,483,534.68
  5. Step 5: Solve for x
    x = 216,483,534.68/21,076.29
  6. Step 6: Final answer
    x = 10,271.43

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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.