Home / 30,176.20-45,247.78-10,453.08

Finding the Fourth Proportional to 30,176.20, 45,247.78 and 10,453.08

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Solution

The fourth proportional to 30,176.20, 45,247.78 and 10,453.08 is: 15,673.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,176.20 : 45,247.78 = 10,453.08 : x
  2. Step 2: Convert to fraction form
    30,176.20/45,247.78 = 10,453.08/x
  3. Step 3: Cross multiply
    30,176.20x = 45,247.78 × 10,453.08
  4. Step 4: Simplify right side
    30,176.20x = 472,978,664.16
  5. Step 5: Solve for x
    x = 472,978,664.16/30,176.20
  6. Step 6: Final answer
    x = 15,673.90

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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.