Home / 31,633.65-43,655.22-18,209.07

Finding the Fourth Proportional to 31,633.65, 43,655.22 and 18,209.07

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Solution

The fourth proportional to 31,633.65, 43,655.22 and 18,209.07 is: 25,128.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,633.65 : 43,655.22 = 18,209.07 : x
  2. Step 2: Convert to fraction form
    31,633.65/43,655.22 = 18,209.07/x
  3. Step 3: Cross multiply
    31,633.65x = 43,655.22 × 18,209.07
  4. Step 4: Simplify right side
    31,633.65x = 794,920,956.85
  5. Step 5: Solve for x
    x = 794,920,956.85/31,633.65
  6. Step 6: Final answer
    x = 25,128.97

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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.