Home / 31,617.80-43,633.84-18,189.06

Finding the Fourth Proportional to 31,617.80, 43,633.84 and 18,189.06

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Solution

The fourth proportional to 31,617.80, 43,633.84 and 18,189.06 is: 25,101.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,617.80 : 43,633.84 = 18,189.06 : x
  2. Step 2: Convert to fraction form
    31,617.80/43,633.84 = 18,189.06/x
  3. Step 3: Cross multiply
    31,617.80x = 43,633.84 × 18,189.06
  4. Step 4: Simplify right side
    31,617.80x = 793,658,533.79
  5. Step 5: Solve for x
    x = 793,658,533.79/31,617.80
  6. Step 6: Final answer
    x = 25,101.64

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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.