Home / 21,222.08-31,838.28-7,183.04

Finding the Fourth Proportional to 21,222.08, 31,838.28 and 7,183.04

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Solution

The fourth proportional to 21,222.08, 31,838.28 and 7,183.04 is: 10,776.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,222.08 : 31,838.28 = 7,183.04 : x
  2. Step 2: Convert to fraction form
    21,222.08/31,838.28 = 7,183.04/x
  3. Step 3: Cross multiply
    21,222.08x = 31,838.28 × 7,183.04
  4. Step 4: Simplify right side
    21,222.08x = 228,695,638.77
  5. Step 5: Solve for x
    x = 228,695,638.77/21,222.08
  6. Step 6: Final answer
    x = 10,776.31

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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.