Home / 20,688.49-31,027.60-5,897.53

Finding the Fourth Proportional to 20,688.49, 31,027.60 and 5,897.53

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Solution

The fourth proportional to 20,688.49, 31,027.60 and 5,897.53 is: 8,844.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,688.49 : 31,027.60 = 5,897.53 : x
  2. Step 2: Convert to fraction form
    20,688.49/31,027.60 = 5,897.53/x
  3. Step 3: Cross multiply
    20,688.49x = 31,027.60 × 5,897.53
  4. Step 4: Simplify right side
    20,688.49x = 182,986,172.34
  5. Step 5: Solve for x
    x = 182,986,172.34/20,688.49
  6. Step 6: Final answer
    x = 8,844.83

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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.