Home / 19,019.84-28,529.68-5,168.80

Finding the Fourth Proportional to 19,019.84, 28,529.68 and 5,168.80

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Solution

The fourth proportional to 19,019.84, 28,529.68 and 5,168.80 is: 7,753.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,019.84 : 28,529.68 = 5,168.80 : x
  2. Step 2: Convert to fraction form
    19,019.84/28,529.68 = 5,168.80/x
  3. Step 3: Cross multiply
    19,019.84x = 28,529.68 × 5,168.80
  4. Step 4: Simplify right side
    19,019.84x = 147,464,209.98
  5. Step 5: Solve for x
    x = 147,464,209.98/19,019.84
  6. Step 6: Final answer
    x = 7,753.18

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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.