Home / 37,915.20-56,775.60-28,000.80

Finding the Fourth Proportional to 37,915.20, 56,775.60 and 28,000.80

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Solution

The fourth proportional to 37,915.20, 56,775.60 and 28,000.80 is: 41,929.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    37,915.20 : 56,775.60 = 28,000.80 : x
  2. Step 2: Convert to fraction form
    37,915.20/56,775.60 = 28,000.80/x
  3. Step 3: Cross multiply
    37,915.20x = 56,775.60 × 28,000.80
  4. Step 4: Simplify right side
    37,915.20x = 1,589,762,220.48
  5. Step 5: Solve for x
    x = 1,589,762,220.48/37,915.20
  6. Step 6: Final answer
    x = 41,929.42

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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.