Home / 31,420.81-43,361.01-17,273.75

Finding the Fourth Proportional to 31,420.81, 43,361.01 and 17,273.75

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Solution

The fourth proportional to 31,420.81, 43,361.01 and 17,273.75 is: 23,837.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,420.81 : 43,361.01 = 17,273.75 : x
  2. Step 2: Convert to fraction form
    31,420.81/43,361.01 = 17,273.75/x
  3. Step 3: Cross multiply
    31,420.81x = 43,361.01 × 17,273.75
  4. Step 4: Simplify right side
    31,420.81x = 749,007,160.12
  5. Step 5: Solve for x
    x = 749,007,160.12/31,420.81
  6. Step 6: Final answer
    x = 23,837.94

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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.