Home / 30,094.90-45,211.56-21,230.62

Finding the Fourth Proportional to 30,094.90, 45,211.56 and 21,230.62

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Solution

The fourth proportional to 30,094.90, 45,211.56 and 21,230.62 is: 31,894.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,094.90 : 45,211.56 = 21,230.62 : x
  2. Step 2: Convert to fraction form
    30,094.90/45,211.56 = 21,230.62/x
  3. Step 3: Cross multiply
    30,094.90x = 45,211.56 × 21,230.62
  4. Step 4: Simplify right side
    30,094.90x = 959,869,449.97
  5. Step 5: Solve for x
    x = 959,869,449.97/30,094.90
  6. Step 6: Final answer
    x = 31,894.75

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.