Home / 19,231.02-28,855.17-10,452.78

Finding the Fourth Proportional to 19,231.02, 28,855.17 and 10,452.78

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Solution

The fourth proportional to 19,231.02, 28,855.17 and 10,452.78 is: 15,683.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,231.02 : 28,855.17 = 10,452.78 : x
  2. Step 2: Convert to fraction form
    19,231.02/28,855.17 = 10,452.78/x
  3. Step 3: Cross multiply
    19,231.02x = 28,855.17 × 10,452.78
  4. Step 4: Simplify right side
    19,231.02x = 301,616,743.87
  5. Step 5: Solve for x
    x = 301,616,743.87/19,231.02
  6. Step 6: Final answer
    x = 15,683.87

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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.