Home / 30,345.98-41,880.60-18,250.38

Finding the Fourth Proportional to 30,345.98, 41,880.60 and 18,250.38

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Solution

The fourth proportional to 30,345.98, 41,880.60 and 18,250.38 is: 25,187.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,345.98 : 41,880.60 = 18,250.38 : x
  2. Step 2: Convert to fraction form
    30,345.98/41,880.60 = 18,250.38/x
  3. Step 3: Cross multiply
    30,345.98x = 41,880.60 × 18,250.38
  4. Step 4: Simplify right side
    30,345.98x = 764,336,864.63
  5. Step 5: Solve for x
    x = 764,336,864.63/30,345.98
  6. Step 6: Final answer
    x = 25,187.42

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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.