Home / 28,830.53-39,786.10-16,255.28

Finding the Fourth Proportional to 28,830.53, 39,786.10 and 16,255.28

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Solution

The fourth proportional to 28,830.53, 39,786.10 and 16,255.28 is: 22,432.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,830.53 : 39,786.10 = 16,255.28 : x
  2. Step 2: Convert to fraction form
    28,830.53/39,786.10 = 16,255.28/x
  3. Step 3: Cross multiply
    28,830.53x = 39,786.10 × 16,255.28
  4. Step 4: Simplify right side
    28,830.53x = 646,734,254.44
  5. Step 5: Solve for x
    x = 646,734,254.44/28,830.53
  6. Step 6: Final answer
    x = 22,432.27

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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.