Home / 30,184.68-45,270.55-18,934.59

Finding the Fourth Proportional to 30,184.68, 45,270.55 and 18,934.59

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Solution

The fourth proportional to 30,184.68, 45,270.55 and 18,934.59 is: 28,397.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,184.68 : 45,270.55 = 18,934.59 : x
  2. Step 2: Convert to fraction form
    30,184.68/45,270.55 = 18,934.59/x
  3. Step 3: Cross multiply
    30,184.68x = 45,270.55 × 18,934.59
  4. Step 4: Simplify right side
    30,184.68x = 857,179,390.25
  5. Step 5: Solve for x
    x = 857,179,390.25/30,184.68
  6. Step 6: Final answer
    x = 28,397.83

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.