Home / 30,168.03-45,273.93-21,224.55

Finding the Fourth Proportional to 30,168.03, 45,273.93 and 21,224.55

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Solution

The fourth proportional to 30,168.03, 45,273.93 and 21,224.55 is: 31,852.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,168.03 : 45,273.93 = 21,224.55 : x
  2. Step 2: Convert to fraction form
    30,168.03/45,273.93 = 21,224.55/x
  3. Step 3: Cross multiply
    30,168.03x = 45,273.93 × 21,224.55
  4. Step 4: Simplify right side
    30,168.03x = 960,918,790.98
  5. Step 5: Solve for x
    x = 960,918,790.98/30,168.03
  6. Step 6: Final answer
    x = 31,852.22

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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.