Home / 22,190.02-30,622.15-13,237.90

Finding the Fourth Proportional to 22,190.02, 30,622.15 and 13,237.90

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Solution

The fourth proportional to 22,190.02, 30,622.15 and 13,237.90 is: 18,268.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,190.02 : 30,622.15 = 13,237.90 : x
  2. Step 2: Convert to fraction form
    22,190.02/30,622.15 = 13,237.90/x
  3. Step 3: Cross multiply
    22,190.02x = 30,622.15 × 13,237.90
  4. Step 4: Simplify right side
    22,190.02x = 405,372,899.48
  5. Step 5: Solve for x
    x = 405,372,899.48/22,190.02
  6. Step 6: Final answer
    x = 18,268.26

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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.