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Finding the Fourth Proportional to 28,803, 43,187.22 and 10,072.76

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Solution

The fourth proportional to 28,803, 43,187.22 and 10,072.76 is: 15,103.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,803 : 43,187.22 = 10,072.76 : x
  2. Step 2: Convert to fraction form
    28,803/43,187.22 = 10,072.76/x
  3. Step 3: Cross multiply
    28,803x = 43,187.22 × 10,072.76
  4. Step 4: Simplify right side
    28,803x = 435,014,502.13
  5. Step 5: Solve for x
    x = 435,014,502.13/28,803
  6. Step 6: Final answer
    x = 15,103.10

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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.