Home / 20,883.90-31,273.92-14,614.56

Finding the Fourth Proportional to 20,883.90, 31,273.92 and 14,614.56

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Solution

The fourth proportional to 20,883.90, 31,273.92 and 14,614.56 is: 21,885.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,883.90 : 31,273.92 = 14,614.56 : x
  2. Step 2: Convert to fraction form
    20,883.90/31,273.92 = 14,614.56/x
  3. Step 3: Cross multiply
    20,883.90x = 31,273.92 × 14,614.56
  4. Step 4: Simplify right side
    20,883.90x = 457,054,697.55
  5. Step 5: Solve for x
    x = 457,054,697.55/20,883.90
  6. Step 6: Final answer
    x = 21,885.51

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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.