Home / 28,836.12-43,234.20-11,307.72

Finding the Fourth Proportional to 28,836.12, 43,234.20 and 11,307.72

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Solution

The fourth proportional to 28,836.12, 43,234.20 and 11,307.72 is: 16,953.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,836.12 : 43,234.20 = 11,307.72 : x
  2. Step 2: Convert to fraction form
    28,836.12/43,234.20 = 11,307.72/x
  3. Step 3: Cross multiply
    28,836.12x = 43,234.20 × 11,307.72
  4. Step 4: Simplify right side
    28,836.12x = 488,880,228.02
  5. Step 5: Solve for x
    x = 488,880,228.02/28,836.12
  6. Step 6: Final answer
    x = 16,953.75

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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.