Home / 31,355.22-43,267.31-18,606.19

Finding the Fourth Proportional to 31,355.22, 43,267.31 and 18,606.19

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Solution

The fourth proportional to 31,355.22, 43,267.31 and 18,606.19 is: 25,674.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,355.22 : 43,267.31 = 18,606.19 : x
  2. Step 2: Convert to fraction form
    31,355.22/43,267.31 = 18,606.19/x
  3. Step 3: Cross multiply
    31,355.22x = 43,267.31 × 18,606.19
  4. Step 4: Simplify right side
    31,355.22x = 805,039,845.01
  5. Step 5: Solve for x
    x = 805,039,845.01/31,355.22
  6. Step 6: Final answer
    x = 25,674.83

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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.