Home / 30,279.94-45,429.17-15,499.33

Finding the Fourth Proportional to 30,279.94, 45,429.17 and 15,499.33

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Solution

The fourth proportional to 30,279.94, 45,429.17 and 15,499.33 is: 23,253.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,279.94 : 45,429.17 = 15,499.33 : x
  2. Step 2: Convert to fraction form
    30,279.94/45,429.17 = 15,499.33/x
  3. Step 3: Cross multiply
    30,279.94x = 45,429.17 × 15,499.33
  4. Step 4: Simplify right side
    30,279.94x = 704,121,506.39
  5. Step 5: Solve for x
    x = 704,121,506.39/30,279.94
  6. Step 6: Final answer
    x = 23,253.73

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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.