Home / 19,211.97-28,817.95-5,172.03

Finding the Fourth Proportional to 19,211.97, 28,817.95 and 5,172.03

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Solution

The fourth proportional to 19,211.97, 28,817.95 and 5,172.03 is: 7,758.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,211.97 : 28,817.95 = 5,172.03 : x
  2. Step 2: Convert to fraction form
    19,211.97/28,817.95 = 5,172.03/x
  3. Step 3: Cross multiply
    19,211.97x = 28,817.95 × 5,172.03
  4. Step 4: Simplify right side
    19,211.97x = 149,047,301.94
  5. Step 5: Solve for x
    x = 149,047,301.94/19,211.97
  6. Step 6: Final answer
    x = 7,758.04

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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.