Home / 30,352.32-41,874.12-18,411.30

Finding the Fourth Proportional to 30,352.32, 41,874.12 and 18,411.30

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Solution

The fourth proportional to 30,352.32, 41,874.12 and 18,411.30 is: 25,400.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,352.32 : 41,874.12 = 18,411.30 : x
  2. Step 2: Convert to fraction form
    30,352.32/41,874.12 = 18,411.30/x
  3. Step 3: Cross multiply
    30,352.32x = 41,874.12 × 18,411.30
  4. Step 4: Simplify right side
    30,352.32x = 770,956,985.56
  5. Step 5: Solve for x
    x = 770,956,985.56/30,352.32
  6. Step 6: Final answer
    x = 25,400.27

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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.