Home / 30,910.77-42,656.99-16,763.85

Finding the Fourth Proportional to 30,910.77, 42,656.99 and 16,763.85

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Solution

The fourth proportional to 30,910.77, 42,656.99 and 16,763.85 is: 23,134.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,910.77 : 42,656.99 = 16,763.85 : x
  2. Step 2: Convert to fraction form
    30,910.77/42,656.99 = 16,763.85/x
  3. Step 3: Cross multiply
    30,910.77x = 42,656.99 × 16,763.85
  4. Step 4: Simplify right side
    30,910.77x = 715,095,297.99
  5. Step 5: Solve for x
    x = 715,095,297.99/30,910.77
  6. Step 6: Final answer
    x = 23,134.18

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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.