Home / 31,001.54-42,782.99-19,058.09

Finding the Fourth Proportional to 31,001.54, 42,782.99 and 19,058.09

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Solution

The fourth proportional to 31,001.54, 42,782.99 and 19,058.09 is: 26,300.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,001.54 : 42,782.99 = 19,058.09 : x
  2. Step 2: Convert to fraction form
    31,001.54/42,782.99 = 19,058.09/x
  3. Step 3: Cross multiply
    31,001.54x = 42,782.99 × 19,058.09
  4. Step 4: Simplify right side
    31,001.54x = 815,361,764.68
  5. Step 5: Solve for x
    x = 815,361,764.68/31,001.54
  6. Step 6: Final answer
    x = 26,300.69

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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.