Home / 22,431.11-30,953.78-12,359.27

Finding the Fourth Proportional to 22,431.11, 30,953.78 and 12,359.27

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Solution

The fourth proportional to 22,431.11, 30,953.78 and 12,359.27 is: 17,055.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,431.11 : 30,953.78 = 12,359.27 : x
  2. Step 2: Convert to fraction form
    22,431.11/30,953.78 = 12,359.27/x
  3. Step 3: Cross multiply
    22,431.11x = 30,953.78 × 12,359.27
  4. Step 4: Simplify right side
    22,431.11x = 382,565,907.98
  5. Step 5: Solve for x
    x = 382,565,907.98/22,431.11
  6. Step 6: Final answer
    x = 17,055.15

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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.