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Finding the Fourth Proportional to 30,123.50, 41,569.80 and 16,694.64

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Solution

The fourth proportional to 30,123.50, 41,569.80 and 16,694.64 is: 23,038.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,123.50 : 41,569.80 = 16,694.64 : x
  2. Step 2: Convert to fraction form
    30,123.50/41,569.80 = 16,694.64/x
  3. Step 3: Cross multiply
    30,123.50x = 41,569.80 × 16,694.64
  4. Step 4: Simplify right side
    30,123.50x = 693,992,713.31
  5. Step 5: Solve for x
    x = 693,992,713.31/30,123.50
  6. Step 6: Final answer
    x = 23,038.25

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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.