Home / 30,270.26-45,418.46-11,555.92

Finding the Fourth Proportional to 30,270.26, 45,418.46 and 11,555.92

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Solution

The fourth proportional to 30,270.26, 45,418.46 and 11,555.92 is: 17,338.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,270.26 : 45,418.46 = 11,555.92 : x
  2. Step 2: Convert to fraction form
    30,270.26/45,418.46 = 11,555.92/x
  3. Step 3: Cross multiply
    30,270.26x = 45,418.46 × 11,555.92
  4. Step 4: Simplify right side
    30,270.26x = 524,852,090.28
  5. Step 5: Solve for x
    x = 524,852,090.28/30,270.26
  6. Step 6: Final answer
    x = 17,338.87

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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.