Home / 21,894.86-30,183.28-15,596.30

Finding the Fourth Proportional to 21,894.86, 30,183.28 and 15,596.30

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Solution

The fourth proportional to 21,894.86, 30,183.28 and 15,596.30 is: 21,500.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,894.86 : 30,183.28 = 15,596.30 : x
  2. Step 2: Convert to fraction form
    21,894.86/30,183.28 = 15,596.30/x
  3. Step 3: Cross multiply
    21,894.86x = 30,183.28 × 15,596.30
  4. Step 4: Simplify right side
    21,894.86x = 470,747,299.96
  5. Step 5: Solve for x
    x = 470,747,299.96/21,894.86
  6. Step 6: Final answer
    x = 21,500.36

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.