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Finding the Fourth Proportional to 19,332.76, 28,994.66 and 10,903

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Solution

The fourth proportional to 19,332.76, 28,994.66 and 10,903 is: 16,351.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,332.76 : 28,994.66 = 10,903 : x
  2. Step 2: Convert to fraction form
    19,332.76/28,994.66 = 10,903/x
  3. Step 3: Cross multiply
    19,332.76x = 28,994.66 × 10,903
  4. Step 4: Simplify right side
    19,332.76x = 316,128,777.98
  5. Step 5: Solve for x
    x = 316,128,777.98/19,332.76
  6. Step 6: Final answer
    x = 16,351.97

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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.