Home / 19,748.40-29,469.75-17,645.55

Finding the Fourth Proportional to 19,748.40, 29,469.75 and 17,645.55

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Solution

The fourth proportional to 19,748.40, 29,469.75 and 17,645.55 is: 26,331.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,748.40 : 29,469.75 = 17,645.55 : x
  2. Step 2: Convert to fraction form
    19,748.40/29,469.75 = 17,645.55/x
  3. Step 3: Cross multiply
    19,748.40x = 29,469.75 × 17,645.55
  4. Step 4: Simplify right side
    19,748.40x = 520,009,947.11
  5. Step 5: Solve for x
    x = 520,009,947.11/19,748.40
  6. Step 6: Final answer
    x = 26,331.75

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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.