Home / 31,796.48-43,881.21-18,368.30

Finding the Fourth Proportional to 31,796.48, 43,881.21 and 18,368.30

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Solution

The fourth proportional to 31,796.48, 43,881.21 and 18,368.30 is: 25,349.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,796.48 : 43,881.21 = 18,368.30 : x
  2. Step 2: Convert to fraction form
    31,796.48/43,881.21 = 18,368.30/x
  3. Step 3: Cross multiply
    31,796.48x = 43,881.21 × 18,368.30
  4. Step 4: Simplify right side
    31,796.48x = 806,023,010.24
  5. Step 5: Solve for x
    x = 806,023,010.24/31,796.48
  6. Step 6: Final answer
    x = 25,349.45

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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.