Home / 31,607.29-43,626.44-19,663.84

Finding the Fourth Proportional to 31,607.29, 43,626.44 and 19,663.84

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Solution

The fourth proportional to 31,607.29, 43,626.44 and 19,663.84 is: 27,141.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,607.29 : 43,626.44 = 19,663.84 : x
  2. Step 2: Convert to fraction form
    31,607.29/43,626.44 = 19,663.84/x
  3. Step 3: Cross multiply
    31,607.29x = 43,626.44 × 19,663.84
  4. Step 4: Simplify right side
    31,607.29x = 857,863,019.48
  5. Step 5: Solve for x
    x = 857,863,019.48/31,607.29
  6. Step 6: Final answer
    x = 27,141.31

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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.