Home / 22,187.60-30,630.16-17,140.48

Finding the Fourth Proportional to 22,187.60, 30,630.16 and 17,140.48

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Solution

The fourth proportional to 22,187.60, 30,630.16 and 17,140.48 is: 23,662.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,187.60 : 30,630.16 = 17,140.48 : x
  2. Step 2: Convert to fraction form
    22,187.60/30,630.16 = 17,140.48/x
  3. Step 3: Cross multiply
    22,187.60x = 30,630.16 × 17,140.48
  4. Step 4: Simplify right side
    22,187.60x = 525,015,644.88
  5. Step 5: Solve for x
    x = 525,015,644.88/22,187.60
  6. Step 6: Final answer
    x = 23,662.57

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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.