Home / 23,021.43-31,769.40-13,085.43

Finding the Fourth Proportional to 23,021.43, 31,769.40 and 13,085.43

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Solution

The fourth proportional to 23,021.43, 31,769.40 and 13,085.43 is: 18,057.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    23,021.43 : 31,769.40 = 13,085.43 : x
  2. Step 2: Convert to fraction form
    23,021.43/31,769.40 = 13,085.43/x
  3. Step 3: Cross multiply
    23,021.43x = 31,769.40 × 13,085.43
  4. Step 4: Simplify right side
    23,021.43x = 415,716,259.84
  5. Step 5: Solve for x
    x = 415,716,259.84/23,021.43
  6. Step 6: Final answer
    x = 18,057.79

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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.