Home / 28,255.44-42,389.98-8,532.80

Finding the Fourth Proportional to 28,255.44, 42,389.98 and 8,532.80

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Solution

The fourth proportional to 28,255.44, 42,389.98 and 8,532.80 is: 12,801.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,255.44 : 42,389.98 = 8,532.80 : x
  2. Step 2: Convert to fraction form
    28,255.44/42,389.98 = 8,532.80/x
  3. Step 3: Cross multiply
    28,255.44x = 42,389.98 × 8,532.80
  4. Step 4: Simplify right side
    28,255.44x = 361,705,221.34
  5. Step 5: Solve for x
    x = 361,705,221.34/28,255.44
  6. Step 6: Final answer
    x = 12,801.26

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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.