Home / 21,847.48-30,190.38-18,615.52

Finding the Fourth Proportional to 21,847.48, 30,190.38 and 18,615.52

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Solution

The fourth proportional to 21,847.48, 30,190.38 and 18,615.52 is: 25,724.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,847.48 : 30,190.38 = 18,615.52 : x
  2. Step 2: Convert to fraction form
    21,847.48/30,190.38 = 18,615.52/x
  3. Step 3: Cross multiply
    21,847.48x = 30,190.38 × 18,615.52
  4. Step 4: Simplify right side
    21,847.48x = 562,009,622.70
  5. Step 5: Solve for x
    x = 562,009,622.70/21,847.48
  6. Step 6: Final answer
    x = 25,724.23

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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.