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Finding the Fourth Proportional to 30,053.50, 41,475.75 and 16,805.50

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Solution

The fourth proportional to 30,053.50, 41,475.75 and 16,805.50 is: 23,192.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,053.50 : 41,475.75 = 16,805.50 : x
  2. Step 2: Convert to fraction form
    30,053.50/41,475.75 = 16,805.50/x
  3. Step 3: Cross multiply
    30,053.50x = 41,475.75 × 16,805.50
  4. Step 4: Simplify right side
    30,053.50x = 697,020,716.63
  5. Step 5: Solve for x
    x = 697,020,716.63/30,053.50
  6. Step 6: Final answer
    x = 23,192.66

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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.