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Finding the Fourth Proportional to 33,639, 46,423.26 and 18,735

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Solution

The fourth proportional to 33,639, 46,423.26 and 18,735 is: 25,855.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    33,639 : 46,423.26 = 18,735 : x
  2. Step 2: Convert to fraction form
    33,639/46,423.26 = 18,735/x
  3. Step 3: Cross multiply
    33,639x = 46,423.26 × 18,735
  4. Step 4: Simplify right side
    33,639x = 869,739,776.10
  5. Step 5: Solve for x
    x = 869,739,776.10/33,639
  6. Step 6: Final answer
    x = 25,855.10

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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.