Home / 19,816.65-27,344.94-11,320.91

Finding the Fourth Proportional to 19,816.65, 27,344.94 and 11,320.91

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Solution

The fourth proportional to 19,816.65, 27,344.94 and 11,320.91 is: 15,621.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,816.65 : 27,344.94 = 11,320.91 : x
  2. Step 2: Convert to fraction form
    19,816.65/27,344.94 = 11,320.91/x
  3. Step 3: Cross multiply
    19,816.65x = 27,344.94 × 11,320.91
  4. Step 4: Simplify right side
    19,816.65x = 309,569,745.56
  5. Step 5: Solve for x
    x = 309,569,745.56/19,816.65
  6. Step 6: Final answer
    x = 15,621.70

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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.