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Finding the Fourth Proportional to 34,755.75, 47,965.01 and 19,649.81

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Solution

The fourth proportional to 34,755.75, 47,965.01 and 19,649.81 is: 27,117.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    34,755.75 : 47,965.01 = 19,649.81 : x
  2. Step 2: Convert to fraction form
    34,755.75/47,965.01 = 19,649.81/x
  3. Step 3: Cross multiply
    34,755.75x = 47,965.01 × 19,649.81
  4. Step 4: Simplify right side
    34,755.75x = 942,502,995.07
  5. Step 5: Solve for x
    x = 942,502,995.07/34,755.75
  6. Step 6: Final answer
    x = 27,117.90

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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.