Home / 30,300.30-41,820.26-18,370.17

Finding the Fourth Proportional to 30,300.30, 41,820.26 and 18,370.17

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Solution

The fourth proportional to 30,300.30, 41,820.26 and 18,370.17 is: 25,354.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,300.30 : 41,820.26 = 18,370.17 : x
  2. Step 2: Convert to fraction form
    30,300.30/41,820.26 = 18,370.17/x
  3. Step 3: Cross multiply
    30,300.30x = 41,820.26 × 18,370.17
  4. Step 4: Simplify right side
    30,300.30x = 768,245,193.79
  5. Step 5: Solve for x
    x = 768,245,193.79/30,300.30
  6. Step 6: Final answer
    x = 25,354.38

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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.