Home / 31,233.32-43,101.22-19,138.51

Finding the Fourth Proportional to 31,233.32, 43,101.22 and 19,138.51

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Solution

The fourth proportional to 31,233.32, 43,101.22 and 19,138.51 is: 26,410.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,233.32 : 43,101.22 = 19,138.51 : x
  2. Step 2: Convert to fraction form
    31,233.32/43,101.22 = 19,138.51/x
  3. Step 3: Cross multiply
    31,233.32x = 43,101.22 × 19,138.51
  4. Step 4: Simplify right side
    31,233.32x = 824,893,129.98
  5. Step 5: Solve for x
    x = 824,893,129.98/31,233.32
  6. Step 6: Final answer
    x = 26,410.68

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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.