Home / 20,883.56-31,268.84-15,294.56

Finding the Fourth Proportional to 20,883.56, 31,268.84 and 15,294.56

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Solution

The fourth proportional to 20,883.56, 31,268.84 and 15,294.56 is: 22,900.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,883.56 : 31,268.84 = 15,294.56 : x
  2. Step 2: Convert to fraction form
    20,883.56/31,268.84 = 15,294.56/x
  3. Step 3: Cross multiply
    20,883.56x = 31,268.84 × 15,294.56
  4. Step 4: Simplify right side
    20,883.56x = 478,242,916.69
  5. Step 5: Solve for x
    x = 478,242,916.69/20,883.56
  6. Step 6: Final answer
    x = 22,900.46

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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.