Home / 21,225.24-31,838.10-6,434.04

Finding the Fourth Proportional to 21,225.24, 31,838.10 and 6,434.04

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Solution

The fourth proportional to 21,225.24, 31,838.10 and 6,434.04 is: 9,651.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,225.24 : 31,838.10 = 6,434.04 : x
  2. Step 2: Convert to fraction form
    21,225.24/31,838.10 = 6,434.04/x
  3. Step 3: Cross multiply
    21,225.24x = 31,838.10 × 6,434.04
  4. Step 4: Simplify right side
    21,225.24x = 204,847,608.92
  5. Step 5: Solve for x
    x = 204,847,608.92/21,225.24
  6. Step 6: Final answer
    x = 9,651.13

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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.