Home / 28,099.20-42,176.10-21,926.40

Finding the Fourth Proportional to 28,099.20, 42,176.10 and 21,926.40

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Solution

The fourth proportional to 28,099.20, 42,176.10 and 21,926.40 is: 32,910.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,099.20 : 42,176.10 = 21,926.40 : x
  2. Step 2: Convert to fraction form
    28,099.20/42,176.10 = 21,926.40/x
  3. Step 3: Cross multiply
    28,099.20x = 42,176.10 × 21,926.40
  4. Step 4: Simplify right side
    28,099.20x = 924,770,039.04
  5. Step 5: Solve for x
    x = 924,770,039.04/28,099.20
  6. Step 6: Final answer
    x = 32,910.90

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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.