Home / 31,357.09-43,273.13-17,209.63

Finding the Fourth Proportional to 31,357.09, 43,273.13 and 17,209.63

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Solution

The fourth proportional to 31,357.09, 43,273.13 and 17,209.63 is: 23,749.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,357.09 : 43,273.13 = 17,209.63 : x
  2. Step 2: Convert to fraction form
    31,357.09/43,273.13 = 17,209.63/x
  3. Step 3: Cross multiply
    31,357.09x = 43,273.13 × 17,209.63
  4. Step 4: Simplify right side
    31,357.09x = 744,714,556.24
  5. Step 5: Solve for x
    x = 744,714,556.24/31,357.09
  6. Step 6: Final answer
    x = 23,749.48

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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.