Home / 22,010.95-30,389.61-15,651.64

Finding the Fourth Proportional to 22,010.95, 30,389.61 and 15,651.64

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Solution

The fourth proportional to 22,010.95, 30,389.61 and 15,651.64 is: 21,609.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,010.95 : 30,389.61 = 15,651.64 : x
  2. Step 2: Convert to fraction form
    22,010.95/30,389.61 = 15,651.64/x
  3. Step 3: Cross multiply
    22,010.95x = 30,389.61 × 15,651.64
  4. Step 4: Simplify right side
    22,010.95x = 475,647,235.46
  5. Step 5: Solve for x
    x = 475,647,235.46/22,010.95
  6. Step 6: Final answer
    x = 21,609.57

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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.