Home / 18,784.47-28,136.75-15,257.91

Finding the Fourth Proportional to 18,784.47, 28,136.75 and 15,257.91

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Solution

The fourth proportional to 18,784.47, 28,136.75 and 15,257.91 is: 22,854.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,784.47 : 28,136.75 = 15,257.91 : x
  2. Step 2: Convert to fraction form
    18,784.47/28,136.75 = 15,257.91/x
  3. Step 3: Cross multiply
    18,784.47x = 28,136.75 × 15,257.91
  4. Step 4: Simplify right side
    18,784.47x = 429,307,922.90
  5. Step 5: Solve for x
    x = 429,307,922.90/18,784.47
  6. Step 6: Final answer
    x = 22,854.41

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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.