Home / 19,019.57-28,529.37-7,170.13

Finding the Fourth Proportional to 19,019.57, 28,529.37 and 7,170.13

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Solution

The fourth proportional to 19,019.57, 28,529.37 and 7,170.13 is: 10,755.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,019.57 : 28,529.37 = 7,170.13 : x
  2. Step 2: Convert to fraction form
    19,019.57/28,529.37 = 7,170.13/x
  3. Step 3: Cross multiply
    19,019.57x = 28,529.37 × 7,170.13
  4. Step 4: Simplify right side
    19,019.57x = 204,559,220.39
  5. Step 5: Solve for x
    x = 204,559,220.39/19,019.57
  6. Step 6: Final answer
    x = 10,755.20

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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.