Home / 29,009.31-43,519.43-20,668.63

Finding the Fourth Proportional to 29,009.31, 43,519.43 and 20,668.63

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Solution

The fourth proportional to 29,009.31, 43,519.43 and 20,668.63 is: 31,006.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    29,009.31 : 43,519.43 = 20,668.63 : x
  2. Step 2: Convert to fraction form
    29,009.31/43,519.43 = 20,668.63/x
  3. Step 3: Cross multiply
    29,009.31x = 43,519.43 × 20,668.63
  4. Step 4: Simplify right side
    29,009.31x = 899,486,996.48
  5. Step 5: Solve for x
    x = 899,486,996.48/29,009.31
  6. Step 6: Final answer
    x = 31,006.84

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.