Home / 30,544.36-42,150.72-17,115.58

Finding the Fourth Proportional to 30,544.36, 42,150.72 and 17,115.58

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Solution

The fourth proportional to 30,544.36, 42,150.72 and 17,115.58 is: 23,619.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,544.36 : 42,150.72 = 17,115.58 : x
  2. Step 2: Convert to fraction form
    30,544.36/42,150.72 = 17,115.58/x
  3. Step 3: Cross multiply
    30,544.36x = 42,150.72 × 17,115.58
  4. Step 4: Simplify right side
    30,544.36x = 721,433,934.64
  5. Step 5: Solve for x
    x = 721,433,934.64/30,544.36
  6. Step 6: Final answer
    x = 23,619.22

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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.