Home / 30,992.36-42,757.62-19,051.88

Finding the Fourth Proportional to 30,992.36, 42,757.62 and 19,051.88

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Solution

The fourth proportional to 30,992.36, 42,757.62 and 19,051.88 is: 26,284.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,992.36 : 42,757.62 = 19,051.88 : x
  2. Step 2: Convert to fraction form
    30,992.36/42,757.62 = 19,051.88/x
  3. Step 3: Cross multiply
    30,992.36x = 42,757.62 × 19,051.88
  4. Step 4: Simplify right side
    30,992.36x = 814,613,045.33
  5. Step 5: Solve for x
    x = 814,613,045.33/30,992.36
  6. Step 6: Final answer
    x = 26,284.32

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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.