Home / 18,721.86-27,912.44-16,618.22

Finding the Fourth Proportional to 18,721.86, 27,912.44 and 16,618.22

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Solution

The fourth proportional to 18,721.86, 27,912.44 and 16,618.22 is: 24,776.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,721.86 : 27,912.44 = 16,618.22 : x
  2. Step 2: Convert to fraction form
    18,721.86/27,912.44 = 16,618.22/x
  3. Step 3: Cross multiply
    18,721.86x = 27,912.44 × 16,618.22
  4. Step 4: Simplify right side
    18,721.86x = 463,855,068.66
  5. Step 5: Solve for x
    x = 463,855,068.66/18,721.86
  6. Step 6: Final answer
    x = 24,776.12

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.