Home / 31,451.55-43,403.21-17,305.30

Finding the Fourth Proportional to 31,451.55, 43,403.21 and 17,305.30

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Solution

The fourth proportional to 31,451.55, 43,403.21 and 17,305.30 is: 23,881.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,451.55 : 43,403.21 = 17,305.30 : x
  2. Step 2: Convert to fraction form
    31,451.55/43,403.21 = 17,305.30/x
  3. Step 3: Cross multiply
    31,451.55x = 43,403.21 × 17,305.30
  4. Step 4: Simplify right side
    31,451.55x = 751,105,570.01
  5. Step 5: Solve for x
    x = 751,105,570.01/31,451.55
  6. Step 6: Final answer
    x = 23,881.35

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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.