Home / 28,876.20-43,281.42-12,225.84

Finding the Fourth Proportional to 28,876.20, 43,281.42 and 12,225.84

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Solution

The fourth proportional to 28,876.20, 43,281.42 and 12,225.84 is: 18,324.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,876.20 : 43,281.42 = 12,225.84 : x
  2. Step 2: Convert to fraction form
    28,876.20/43,281.42 = 12,225.84/x
  3. Step 3: Cross multiply
    28,876.20x = 43,281.42 × 12,225.84
  4. Step 4: Simplify right side
    28,876.20x = 529,151,715.89
  5. Step 5: Solve for x
    x = 529,151,715.89/28,876.20
  6. Step 6: Final answer
    x = 18,324.84

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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.