Home / 30,906.83-42,649.63-17,480.90

Finding the Fourth Proportional to 30,906.83, 42,649.63 and 17,480.90

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Solution

The fourth proportional to 30,906.83, 42,649.63 and 17,480.90 is: 24,122.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,906.83 : 42,649.63 = 17,480.90 : x
  2. Step 2: Convert to fraction form
    30,906.83/42,649.63 = 17,480.90/x
  3. Step 3: Cross multiply
    30,906.83x = 42,649.63 × 17,480.90
  4. Step 4: Simplify right side
    30,906.83x = 745,553,917.07
  5. Step 5: Solve for x
    x = 745,553,917.07/30,906.83
  6. Step 6: Final answer
    x = 24,122.63

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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.