Home / 19,023.84-28,535.68-5,172.80

Finding the Fourth Proportional to 19,023.84, 28,535.68 and 5,172.80

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Solution

The fourth proportional to 19,023.84, 28,535.68 and 5,172.80 is: 7,759.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,023.84 : 28,535.68 = 5,172.80 : x
  2. Step 2: Convert to fraction form
    19,023.84/28,535.68 = 5,172.80/x
  3. Step 3: Cross multiply
    19,023.84x = 28,535.68 × 5,172.80
  4. Step 4: Simplify right side
    19,023.84x = 147,609,365.50
  5. Step 5: Solve for x
    x = 147,609,365.50/19,023.84
  6. Step 6: Final answer
    x = 7,759.18

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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.