Home / 21,337.92-31,793.49-19,009.98

Finding the Fourth Proportional to 21,337.92, 31,793.49 and 19,009.98

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Solution

The fourth proportional to 21,337.92, 31,793.49 and 19,009.98 is: 28,324.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,337.92 : 31,793.49 = 19,009.98 : x
  2. Step 2: Convert to fraction form
    21,337.92/31,793.49 = 19,009.98/x
  3. Step 3: Cross multiply
    21,337.92x = 31,793.49 × 19,009.98
  4. Step 4: Simplify right side
    21,337.92x = 604,393,609.03
  5. Step 5: Solve for x
    x = 604,393,609.03/21,337.92
  6. Step 6: Final answer
    x = 28,324.86

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.