Home / 30,150.23-45,229.79-10,423.49

Finding the Fourth Proportional to 30,150.23, 45,229.79 and 10,423.49

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Solution

The fourth proportional to 30,150.23, 45,229.79 and 10,423.49 is: 15,636.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,150.23 : 45,229.79 = 10,423.49 : x
  2. Step 2: Convert to fraction form
    30,150.23/45,229.79 = 10,423.49/x
  3. Step 3: Cross multiply
    30,150.23x = 45,229.79 × 10,423.49
  4. Step 4: Simplify right side
    30,150.23x = 471,452,063.68
  5. Step 5: Solve for x
    x = 471,452,063.68/30,150.23
  6. Step 6: Final answer
    x = 15,636.77

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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.