Home / 30,095.90-45,213.06-21,231.62

Finding the Fourth Proportional to 30,095.90, 45,213.06 and 21,231.62

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Solution

The fourth proportional to 30,095.90, 45,213.06 and 21,231.62 is: 31,896.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,095.90 : 45,213.06 = 21,231.62 : x
  2. Step 2: Convert to fraction form
    30,095.90/45,213.06 = 21,231.62/x
  3. Step 3: Cross multiply
    30,095.90x = 45,213.06 × 21,231.62
  4. Step 4: Simplify right side
    30,095.90x = 959,946,508.96
  5. Step 5: Solve for x
    x = 959,946,508.96/30,095.90
  6. Step 6: Final answer
    x = 31,896.26

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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.