Home / 30,094.20-41,486.72-21,113.88

Finding the Fourth Proportional to 30,094.20, 41,486.72 and 21,113.88

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Solution

The fourth proportional to 30,094.20, 41,486.72 and 21,113.88 is: 29,106.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,094.20 : 41,486.72 = 21,113.88 : x
  2. Step 2: Convert to fraction form
    30,094.20/41,486.72 = 21,113.88/x
  3. Step 3: Cross multiply
    30,094.20x = 41,486.72 × 21,113.88
  4. Step 4: Simplify right side
    30,094.20x = 875,945,627.67
  5. Step 5: Solve for x
    x = 875,945,627.67/30,094.20
  6. Step 6: Final answer
    x = 29,106.79

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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.