Home / 30,318.75-41,842.71-17,743.50

Finding the Fourth Proportional to 30,318.75, 41,842.71 and 17,743.50

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Solution

The fourth proportional to 30,318.75, 41,842.71 and 17,743.50 is: 24,487.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,318.75 : 41,842.71 = 17,743.50 : x
  2. Step 2: Convert to fraction form
    30,318.75/41,842.71 = 17,743.50/x
  3. Step 3: Cross multiply
    30,318.75x = 41,842.71 × 17,743.50
  4. Step 4: Simplify right side
    30,318.75x = 742,436,124.89
  5. Step 5: Solve for x
    x = 742,436,124.89/30,318.75
  6. Step 6: Final answer
    x = 24,487.69

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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.