Home / 19,728.45-27,224.81-10,775.97

Finding the Fourth Proportional to 19,728.45, 27,224.81 and 10,775.97

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Solution

The fourth proportional to 19,728.45, 27,224.81 and 10,775.97 is: 14,870.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,728.45 : 27,224.81 = 10,775.97 : x
  2. Step 2: Convert to fraction form
    19,728.45/27,224.81 = 10,775.97/x
  3. Step 3: Cross multiply
    19,728.45x = 27,224.81 × 10,775.97
  4. Step 4: Simplify right side
    19,728.45x = 293,373,681.94
  5. Step 5: Solve for x
    x = 293,373,681.94/19,728.45
  6. Step 6: Final answer
    x = 14,870.59

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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.