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Finding the Fourth Proportional to 28,901.01, 43,348.02 and 7,839.72

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Solution

The fourth proportional to 28,901.01, 43,348.02 and 7,839.72 is: 11,758.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,901.01 : 43,348.02 = 7,839.72 : x
  2. Step 2: Convert to fraction form
    28,901.01/43,348.02 = 7,839.72/x
  3. Step 3: Cross multiply
    28,901.01x = 43,348.02 × 7,839.72
  4. Step 4: Simplify right side
    28,901.01x = 339,836,339.35
  5. Step 5: Solve for x
    x = 339,836,339.35/28,901.01
  6. Step 6: Final answer
    x = 11,758.63

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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.