Home / 31,721.16-43,795.37-19,802.01

Finding the Fourth Proportional to 31,721.16, 43,795.37 and 19,802.01

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Solution

The fourth proportional to 31,721.16, 43,795.37 and 19,802.01 is: 27,339.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,721.16 : 43,795.37 = 19,802.01 : x
  2. Step 2: Convert to fraction form
    31,721.16/43,795.37 = 19,802.01/x
  3. Step 3: Cross multiply
    31,721.16x = 43,795.37 × 19,802.01
  4. Step 4: Simplify right side
    31,721.16x = 867,236,354.69
  5. Step 5: Solve for x
    x = 867,236,354.69/31,721.16
  6. Step 6: Final answer
    x = 27,339.36

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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.