Home / 31,637.82-43,674.36-20,157.66

Finding the Fourth Proportional to 31,637.82, 43,674.36 and 20,157.66

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Solution

The fourth proportional to 31,637.82, 43,674.36 and 20,157.66 is: 27,826.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,637.82 : 43,674.36 = 20,157.66 : x
  2. Step 2: Convert to fraction form
    31,637.82/43,674.36 = 20,157.66/x
  3. Step 3: Cross multiply
    31,637.82x = 43,674.36 × 20,157.66
  4. Step 4: Simplify right side
    31,637.82x = 880,372,899.60
  5. Step 5: Solve for x
    x = 880,372,899.60/31,637.82
  6. Step 6: Final answer
    x = 27,826.60

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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.