Home / 22,361.55-30,845.18-13,280.75

Finding the Fourth Proportional to 22,361.55, 30,845.18 and 13,280.75

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Solution

The fourth proportional to 22,361.55, 30,845.18 and 13,280.75 is: 18,319.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,361.55 : 30,845.18 = 13,280.75 : x
  2. Step 2: Convert to fraction form
    22,361.55/30,845.18 = 13,280.75/x
  3. Step 3: Cross multiply
    22,361.55x = 30,845.18 × 13,280.75
  4. Step 4: Simplify right side
    22,361.55x = 409,646,903.66
  5. Step 5: Solve for x
    x = 409,646,903.66/22,361.55
  6. Step 6: Final answer
    x = 18,319.25

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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.