Home / 19,605.40-29,375.70-13,028.20

Finding the Fourth Proportional to 19,605.40, 29,375.70 and 13,028.20

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Solution

The fourth proportional to 19,605.40, 29,375.70 and 13,028.20 is: 19,520.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,605.40 : 29,375.70 = 13,028.20 : x
  2. Step 2: Convert to fraction form
    19,605.40/29,375.70 = 13,028.20/x
  3. Step 3: Cross multiply
    19,605.40x = 29,375.70 × 13,028.20
  4. Step 4: Simplify right side
    19,605.40x = 382,712,494.74
  5. Step 5: Solve for x
    x = 382,712,494.74/19,605.40
  6. Step 6: Final answer
    x = 19,520.77

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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.