Home / 18,490.19-27,711.45-16,108.64

Finding the Fourth Proportional to 18,490.19, 27,711.45 and 16,108.64

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Solution

The fourth proportional to 18,490.19, 27,711.45 and 16,108.64 is: 24,142.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,490.19 : 27,711.45 = 16,108.64 : x
  2. Step 2: Convert to fraction form
    18,490.19/27,711.45 = 16,108.64/x
  3. Step 3: Cross multiply
    18,490.19x = 27,711.45 × 16,108.64
  4. Step 4: Simplify right side
    18,490.19x = 446,393,633.37
  5. Step 5: Solve for x
    x = 446,393,633.37/18,490.19
  6. Step 6: Final answer
    x = 24,142.19

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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.