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Finding the Fourth Proportional to 29,485, 40,689.30 and 16,237

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Solution

The fourth proportional to 29,485, 40,689.30 and 16,237 is: 22,407.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    29,485 : 40,689.30 = 16,237 : x
  2. Step 2: Convert to fraction form
    29,485/40,689.30 = 16,237/x
  3. Step 3: Cross multiply
    29,485x = 40,689.30 × 16,237
  4. Step 4: Simplify right side
    29,485x = 660,672,164.10
  5. Step 5: Solve for x
    x = 660,672,164.10/29,485
  6. Step 6: Final answer
    x = 22,407.06

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.