Home / 21,192.45-31,752.23-13,793.10

Finding the Fourth Proportional to 21,192.45, 31,752.23 and 13,793.10

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Solution

The fourth proportional to 21,192.45, 31,752.23 and 13,793.10 is: 20,665.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,192.45 : 31,752.23 = 13,793.10 : x
  2. Step 2: Convert to fraction form
    21,192.45/31,752.23 = 13,793.10/x
  3. Step 3: Cross multiply
    21,192.45x = 31,752.23 × 13,793.10
  4. Step 4: Simplify right side
    21,192.45x = 437,961,614.65
  5. Step 5: Solve for x
    x = 437,961,614.65/21,192.45
  6. Step 6: Final answer
    x = 20,665.93

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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.