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Finding the Fourth Proportional to 29,985.72, 45,006.02 and 15,204.84

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Solution

The fourth proportional to 29,985.72, 45,006.02 and 15,204.84 is: 22,821.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    29,985.72 : 45,006.02 = 15,204.84 : x
  2. Step 2: Convert to fraction form
    29,985.72/45,006.02 = 15,204.84/x
  3. Step 3: Cross multiply
    29,985.72x = 45,006.02 × 15,204.84
  4. Step 4: Simplify right side
    29,985.72x = 684,309,333.14
  5. Step 5: Solve for x
    x = 684,309,333.14/29,985.72
  6. Step 6: Final answer
    x = 22,821.17

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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.