Home / 20,835.52-31,290.18-19,974.46

Finding the Fourth Proportional to 20,835.52, 31,290.18 and 19,974.46

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Solution

The fourth proportional to 20,835.52, 31,290.18 and 19,974.46 is: 29,997.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,835.52 : 31,290.18 = 19,974.46 : x
  2. Step 2: Convert to fraction form
    20,835.52/31,290.18 = 19,974.46/x
  3. Step 3: Cross multiply
    20,835.52x = 31,290.18 × 19,974.46
  4. Step 4: Simplify right side
    20,835.52x = 625,004,448.80
  5. Step 5: Solve for x
    x = 625,004,448.80/20,835.52
  6. Step 6: Final answer
    x = 29,997.07

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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.