Home / 20,686.41-31,031.10-5,896.53

Finding the Fourth Proportional to 20,686.41, 31,031.10 and 5,896.53

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Solution

The fourth proportional to 20,686.41, 31,031.10 and 5,896.53 is: 8,845.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,686.41 : 31,031.10 = 5,896.53 : x
  2. Step 2: Convert to fraction form
    20,686.41/31,031.10 = 5,896.53/x
  3. Step 3: Cross multiply
    20,686.41x = 31,031.10 × 5,896.53
  4. Step 4: Simplify right side
    20,686.41x = 182,975,812.08
  5. Step 5: Solve for x
    x = 182,975,812.08/20,686.41
  6. Step 6: Final answer
    x = 8,845.22

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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.