Home / 30,244.62-41,742.12-21,774.78

Finding the Fourth Proportional to 30,244.62, 41,742.12 and 21,774.78

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Solution

The fourth proportional to 30,244.62, 41,742.12 and 21,774.78 is: 30,052.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,244.62 : 41,742.12 = 21,774.78 : x
  2. Step 2: Convert to fraction form
    30,244.62/41,742.12 = 21,774.78/x
  3. Step 3: Cross multiply
    30,244.62x = 41,742.12 × 21,774.78
  4. Step 4: Simplify right side
    30,244.62x = 908,925,370.86
  5. Step 5: Solve for x
    x = 908,925,370.86/30,244.62
  6. Step 6: Final answer
    x = 30,052.46

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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.