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Finding the Fourth Proportional to 30,907.17, 42,650.69 and 16,759.71

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Solution

The fourth proportional to 30,907.17, 42,650.69 and 16,759.71 is: 23,127.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,907.17 : 42,650.69 = 16,759.71 : x
  2. Step 2: Convert to fraction form
    30,907.17/42,650.69 = 16,759.71/x
  3. Step 3: Cross multiply
    30,907.17x = 42,650.69 × 16,759.71
  4. Step 4: Simplify right side
    30,907.17x = 714,813,111.90
  5. Step 5: Solve for x
    x = 714,813,111.90/30,907.17
  6. Step 6: Final answer
    x = 23,127.74

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