Home / 31,137.30-42,924.96-19,192.68

Finding the Fourth Proportional to 31,137.30, 42,924.96 and 19,192.68

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Solution

The fourth proportional to 31,137.30, 42,924.96 and 19,192.68 is: 26,458.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,137.30 : 42,924.96 = 19,192.68 : x
  2. Step 2: Convert to fraction form
    31,137.30/42,924.96 = 19,192.68/x
  3. Step 3: Cross multiply
    31,137.30x = 42,924.96 × 19,192.68
  4. Step 4: Simplify right side
    31,137.30x = 823,845,021.29
  5. Step 5: Solve for x
    x = 823,845,021.29/31,137.30
  6. Step 6: Final answer
    x = 26,458.46

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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.