Home / 31,504.29-43,477.38-18,754.58

Finding the Fourth Proportional to 31,504.29, 43,477.38 and 18,754.58

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Solution

The fourth proportional to 31,504.29, 43,477.38 and 18,754.58 is: 25,882.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,504.29 : 43,477.38 = 18,754.58 : x
  2. Step 2: Convert to fraction form
    31,504.29/43,477.38 = 18,754.58/x
  3. Step 3: Cross multiply
    31,504.29x = 43,477.38 × 18,754.58
  4. Step 4: Simplify right side
    31,504.29x = 815,400,001.40
  5. Step 5: Solve for x
    x = 815,400,001.40/31,504.29
  6. Step 6: Final answer
    x = 25,882.19

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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.