Home / 19,985.88-29,982.48-8,300.01

Finding the Fourth Proportional to 19,985.88, 29,982.48 and 8,300.01

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Solution

The fourth proportional to 19,985.88, 29,982.48 and 8,300.01 is: 12,451.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,985.88 : 29,982.48 = 8,300.01 : x
  2. Step 2: Convert to fraction form
    19,985.88/29,982.48 = 8,300.01/x
  3. Step 3: Cross multiply
    19,985.88x = 29,982.48 × 8,300.01
  4. Step 4: Simplify right side
    19,985.88x = 248,854,883.82
  5. Step 5: Solve for x
    x = 248,854,883.82/19,985.88
  6. Step 6: Final answer
    x = 12,451.53

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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.