Home / 19,728.65-27,224.85-11,230.13

Finding the Fourth Proportional to 19,728.65, 27,224.85 and 11,230.13

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Solution

The fourth proportional to 19,728.65, 27,224.85 and 11,230.13 is: 15,497.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,728.65 : 27,224.85 = 11,230.13 : x
  2. Step 2: Convert to fraction form
    19,728.65/27,224.85 = 11,230.13/x
  3. Step 3: Cross multiply
    19,728.65x = 27,224.85 × 11,230.13
  4. Step 4: Simplify right side
    19,728.65x = 305,738,672.79
  5. Step 5: Solve for x
    x = 305,738,672.79/19,728.65
  6. Step 6: Final answer
    x = 15,497.19

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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.