Home / 30,609.64-42,240.36-17,180.56

Finding the Fourth Proportional to 30,609.64, 42,240.36 and 17,180.56

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Solution

The fourth proportional to 30,609.64, 42,240.36 and 17,180.56 is: 23,708.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,609.64 : 42,240.36 = 17,180.56 : x
  2. Step 2: Convert to fraction form
    30,609.64/42,240.36 = 17,180.56/x
  3. Step 3: Cross multiply
    30,609.64x = 42,240.36 × 17,180.56
  4. Step 4: Simplify right side
    30,609.64x = 725,713,039.40
  5. Step 5: Solve for x
    x = 725,713,039.40/30,609.64
  6. Step 6: Final answer
    x = 23,708.64

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.