Home / 18,705.65-27,921.62-16,491.38

Finding the Fourth Proportional to 18,705.65, 27,921.62 and 16,491.38

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Solution

The fourth proportional to 18,705.65, 27,921.62 and 16,491.38 is: 24,616.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,705.65 : 27,921.62 = 16,491.38 : x
  2. Step 2: Convert to fraction form
    18,705.65/27,921.62 = 16,491.38/x
  3. Step 3: Cross multiply
    18,705.65x = 27,921.62 × 16,491.38
  4. Step 4: Simplify right side
    18,705.65x = 460,466,156.67
  5. Step 5: Solve for x
    x = 460,466,156.67/18,705.65
  6. Step 6: Final answer
    x = 24,616.42

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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.