Home / 19,947.72-29,921.64-17,381.64

Finding the Fourth Proportional to 19,947.72, 29,921.64 and 17,381.64

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Solution

The fourth proportional to 19,947.72, 29,921.64 and 17,381.64 is: 26,072.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,947.72 : 29,921.64 = 17,381.64 : x
  2. Step 2: Convert to fraction form
    19,947.72/29,921.64 = 17,381.64/x
  3. Step 3: Cross multiply
    19,947.72x = 29,921.64 × 17,381.64
  4. Step 4: Simplify right side
    19,947.72x = 520,087,174.69
  5. Step 5: Solve for x
    x = 520,087,174.69/19,947.72
  6. Step 6: Final answer
    x = 26,072.51

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.