Home / 30,653.32-42,309.66-18,086.44

Finding the Fourth Proportional to 30,653.32, 42,309.66 and 18,086.44

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Solution

The fourth proportional to 30,653.32, 42,309.66 and 18,086.44 is: 24,964.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,653.32 : 42,309.66 = 18,086.44 : x
  2. Step 2: Convert to fraction form
    30,653.32/42,309.66 = 18,086.44/x
  3. Step 3: Cross multiply
    30,653.32x = 42,309.66 × 18,086.44
  4. Step 4: Simplify right side
    30,653.32x = 765,231,127.01
  5. Step 5: Solve for x
    x = 765,231,127.01/30,653.32
  6. Step 6: Final answer
    x = 24,964.05

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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.