Home / 28,188.40-42,196.20-16,466.80

Finding the Fourth Proportional to 28,188.40, 42,196.20 and 16,466.80

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Solution

The fourth proportional to 28,188.40, 42,196.20 and 16,466.80 is: 24,649.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,188.40 : 42,196.20 = 16,466.80 : x
  2. Step 2: Convert to fraction form
    28,188.40/42,196.20 = 16,466.80/x
  3. Step 3: Cross multiply
    28,188.40x = 42,196.20 × 16,466.80
  4. Step 4: Simplify right side
    28,188.40x = 694,836,386.16
  5. Step 5: Solve for x
    x = 694,836,386.16/28,188.40
  6. Step 6: Final answer
    x = 24,649.73

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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.