Home / 30,251.05-45,348.89-12,722.11

Finding the Fourth Proportional to 30,251.05, 45,348.89 and 12,722.11

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Solution

The fourth proportional to 30,251.05, 45,348.89 and 12,722.11 is: 19,071.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,251.05 : 45,348.89 = 12,722.11 : x
  2. Step 2: Convert to fraction form
    30,251.05/45,348.89 = 12,722.11/x
  3. Step 3: Cross multiply
    30,251.05x = 45,348.89 × 12,722.11
  4. Step 4: Simplify right side
    30,251.05x = 576,933,372.02
  5. Step 5: Solve for x
    x = 576,933,372.02/30,251.05
  6. Step 6: Final answer
    x = 19,071.52

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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.