Home / 31,190.79-43,031.07-19,233.37

Finding the Fourth Proportional to 31,190.79, 43,031.07 and 19,233.37

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Solution

The fourth proportional to 31,190.79, 43,031.07 and 19,233.37 is: 26,534.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,190.79 : 43,031.07 = 19,233.37 : x
  2. Step 2: Convert to fraction form
    31,190.79/43,031.07 = 19,233.37/x
  3. Step 3: Cross multiply
    31,190.79x = 43,031.07 × 19,233.37
  4. Step 4: Simplify right side
    31,190.79x = 827,632,490.81
  5. Step 5: Solve for x
    x = 827,632,490.81/31,190.79
  6. Step 6: Final answer
    x = 26,534.52

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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.