Home / 21,970.96-32,968.06-11,982.92

Finding the Fourth Proportional to 21,970.96, 32,968.06 and 11,982.92

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Solution

The fourth proportional to 21,970.96, 32,968.06 and 11,982.92 is: 17,980.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,970.96 : 32,968.06 = 11,982.92 : x
  2. Step 2: Convert to fraction form
    21,970.96/32,968.06 = 11,982.92/x
  3. Step 3: Cross multiply
    21,970.96x = 32,968.06 × 11,982.92
  4. Step 4: Simplify right side
    21,970.96x = 395,053,430.74
  5. Step 5: Solve for x
    x = 395,053,430.74/21,970.96
  6. Step 6: Final answer
    x = 17,980.71

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1.5x scale

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.