Home / 19,881.96-29,822.91-5,090.88

Finding the Fourth Proportional to 19,881.96, 29,822.91 and 5,090.88

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Solution

The fourth proportional to 19,881.96, 29,822.91 and 5,090.88 is: 7,636.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,881.96 : 29,822.91 = 5,090.88 : x
  2. Step 2: Convert to fraction form
    19,881.96/29,822.91 = 5,090.88/x
  3. Step 3: Cross multiply
    19,881.96x = 29,822.91 × 5,090.88
  4. Step 4: Simplify right side
    19,881.96x = 151,824,856.06
  5. Step 5: Solve for x
    x = 151,824,856.06/19,881.96
  6. Step 6: Final answer
    x = 7,636.31

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.