Home / 30,694.12-42,356.34-18,116.44

Finding the Fourth Proportional to 30,694.12, 42,356.34 and 18,116.44

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Solution

The fourth proportional to 30,694.12, 42,356.34 and 18,116.44 is: 24,999.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,694.12 : 42,356.34 = 18,116.44 : x
  2. Step 2: Convert to fraction form
    30,694.12/42,356.34 = 18,116.44/x
  3. Step 3: Cross multiply
    30,694.12x = 42,356.34 × 18,116.44
  4. Step 4: Simplify right side
    30,694.12x = 767,346,092.23
  5. Step 5: Solve for x
    x = 767,346,092.23/30,694.12
  6. Step 6: Final answer
    x = 24,999.77

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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.