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Finding the Fourth Proportional to 28,709, 43,063.68 and 7,932.68

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Solution

The fourth proportional to 28,709, 43,063.68 and 7,932.68 is: 11,899.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,709 : 43,063.68 = 7,932.68 : x
  2. Step 2: Convert to fraction form
    28,709/43,063.68 = 7,932.68/x
  3. Step 3: Cross multiply
    28,709x = 43,063.68 × 7,932.68
  4. Step 4: Simplify right side
    28,709x = 341,610,393.06
  5. Step 5: Solve for x
    x = 341,610,393.06/28,709
  6. Step 6: Final answer
    x = 11,899.07

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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.