Home / 22,311.08-30,790.26-13,356.87

Finding the Fourth Proportional to 22,311.08, 30,790.26 and 13,356.87

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Solution

The fourth proportional to 22,311.08, 30,790.26 and 13,356.87 is: 18,433.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,311.08 : 30,790.26 = 13,356.87 : x
  2. Step 2: Convert to fraction form
    22,311.08/30,790.26 = 13,356.87/x
  3. Step 3: Cross multiply
    22,311.08x = 30,790.26 × 13,356.87
  4. Step 4: Simplify right side
    22,311.08x = 411,261,384.62
  5. Step 5: Solve for x
    x = 411,261,384.62/22,311.08
  6. Step 6: Final answer
    x = 18,433.06

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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.