Home / 30,767.68-42,473.57-18,019.09

Finding the Fourth Proportional to 30,767.68, 42,473.57 and 18,019.09

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Solution

The fourth proportional to 30,767.68, 42,473.57 and 18,019.09 is: 24,874.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,767.68 : 42,473.57 = 18,019.09 : x
  2. Step 2: Convert to fraction form
    30,767.68/42,473.57 = 18,019.09/x
  3. Step 3: Cross multiply
    30,767.68x = 42,473.57 × 18,019.09
  4. Step 4: Simplify right side
    30,767.68x = 765,335,080.45
  5. Step 5: Solve for x
    x = 765,335,080.45/30,767.68
  6. Step 6: Final answer
    x = 24,874.64

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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.