Home / 19,380.18-26,745.04-15,136.18

Finding the Fourth Proportional to 19,380.18, 26,745.04 and 15,136.18

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Solution

The fourth proportional to 19,380.18, 26,745.04 and 15,136.18 is: 20,888.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,380.18 : 26,745.04 = 15,136.18 : x
  2. Step 2: Convert to fraction form
    19,380.18/26,745.04 = 15,136.18/x
  3. Step 3: Cross multiply
    19,380.18x = 26,745.04 × 15,136.18
  4. Step 4: Simplify right side
    19,380.18x = 404,817,739.55
  5. Step 5: Solve for x
    x = 404,817,739.55/19,380.18
  6. Step 6: Final answer
    x = 20,888.23

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.