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Finding the Fourth Proportional to 30,280.68, 41,787.04 and 16,851.71

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Solution

The fourth proportional to 30,280.68, 41,787.04 and 16,851.71 is: 23,255.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,280.68 : 41,787.04 = 16,851.71 : x
  2. Step 2: Convert to fraction form
    30,280.68/41,787.04 = 16,851.71/x
  3. Step 3: Cross multiply
    30,280.68x = 41,787.04 × 16,851.71
  4. Step 4: Simplify right side
    30,280.68x = 704,183,079.84
  5. Step 5: Solve for x
    x = 704,183,079.84/30,280.68
  6. Step 6: Final answer
    x = 23,255.19

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1.5x scale

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.