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Finding the Fourth Proportional to 28,802, 43,185.72 and 10,071.76

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Solution

The fourth proportional to 28,802, 43,185.72 and 10,071.76 is: 15,101.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,802 : 43,185.72 = 10,071.76 : x
  2. Step 2: Convert to fraction form
    28,802/43,185.72 = 10,071.76/x
  3. Step 3: Cross multiply
    28,802x = 43,185.72 × 10,071.76
  4. Step 4: Simplify right side
    28,802x = 434,956,207.27
  5. Step 5: Solve for x
    x = 434,956,207.27/28,802
  6. Step 6: Final answer
    x = 15,101.60

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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.