Home / 30,187.70-45,252.39-10,451.42

Finding the Fourth Proportional to 30,187.70, 45,252.39 and 10,451.42

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Solution

The fourth proportional to 30,187.70, 45,252.39 and 10,451.42 is: 15,667.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,187.70 : 45,252.39 = 10,451.42 : x
  2. Step 2: Convert to fraction form
    30,187.70/45,252.39 = 10,451.42/x
  3. Step 3: Cross multiply
    30,187.70x = 45,252.39 × 10,451.42
  4. Step 4: Simplify right side
    30,187.70x = 472,951,733.89
  5. Step 5: Solve for x
    x = 472,951,733.89/30,187.70
  6. Step 6: Final answer
    x = 15,667.03

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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.