Home / 30,308.94-41,830.14-18,370.74

Finding the Fourth Proportional to 30,308.94, 41,830.14 and 18,370.74

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Solution

The fourth proportional to 30,308.94, 41,830.14 and 18,370.74 is: 25,353.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,308.94 : 41,830.14 = 18,370.74 : x
  2. Step 2: Convert to fraction form
    30,308.94/41,830.14 = 18,370.74/x
  3. Step 3: Cross multiply
    30,308.94x = 41,830.14 × 18,370.74
  4. Step 4: Simplify right side
    30,308.94x = 768,450,626.10
  5. Step 5: Solve for x
    x = 768,450,626.10/30,308.94
  6. Step 6: Final answer
    x = 25,353.93

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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.