Home / 30,906.61-42,649.97-16,759.15

Finding the Fourth Proportional to 30,906.61, 42,649.97 and 16,759.15

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Solution

The fourth proportional to 30,906.61, 42,649.97 and 16,759.15 is: 23,127.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,906.61 : 42,649.97 = 16,759.15 : x
  2. Step 2: Convert to fraction form
    30,906.61/42,649.97 = 16,759.15/x
  3. Step 3: Cross multiply
    30,906.61x = 42,649.97 × 16,759.15
  4. Step 4: Simplify right side
    30,906.61x = 714,777,054.30
  5. Step 5: Solve for x
    x = 714,777,054.30/30,906.61
  6. Step 6: Final answer
    x = 23,127.00

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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.