Home / 19,991.86-29,985.51-6,842.50

Finding the Fourth Proportional to 19,991.86, 29,985.51 and 6,842.50

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Solution

The fourth proportional to 19,991.86, 29,985.51 and 6,842.50 is: 10,262.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,991.86 : 29,985.51 = 6,842.50 : x
  2. Step 2: Convert to fraction form
    19,991.86/29,985.51 = 6,842.50/x
  3. Step 3: Cross multiply
    19,991.86x = 29,985.51 × 6,842.50
  4. Step 4: Simplify right side
    19,991.86x = 205,175,852.18
  5. Step 5: Solve for x
    x = 205,175,852.18/19,991.86
  6. Step 6: Final answer
    x = 10,262.97

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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.