Home / 30,425.75-41,987.54-17,177.75

Finding the Fourth Proportional to 30,425.75, 41,987.54 and 17,177.75

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Solution

The fourth proportional to 30,425.75, 41,987.54 and 17,177.75 is: 23,705.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,425.75 : 41,987.54 = 17,177.75 : x
  2. Step 2: Convert to fraction form
    30,425.75/41,987.54 = 17,177.75/x
  3. Step 3: Cross multiply
    30,425.75x = 41,987.54 × 17,177.75
  4. Step 4: Simplify right side
    30,425.75x = 721,251,465.24
  5. Step 5: Solve for x
    x = 721,251,465.24/30,425.75
  6. Step 6: Final answer
    x = 23,705.30

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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.