Home / 30,260.40-41,760.54-18,316.98

Finding the Fourth Proportional to 30,260.40, 41,760.54 and 18,316.98

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Solution

The fourth proportional to 30,260.40, 41,760.54 and 18,316.98 is: 25,278.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,260.40 : 41,760.54 = 18,316.98 : x
  2. Step 2: Convert to fraction form
    30,260.40/41,760.54 = 18,316.98/x
  3. Step 3: Cross multiply
    30,260.40x = 41,760.54 × 18,316.98
  4. Step 4: Simplify right side
    30,260.40x = 764,926,975.97
  5. Step 5: Solve for x
    x = 764,926,975.97/30,260.40
  6. Step 6: Final answer
    x = 25,278.15

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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.