Home / 21,998.04-32,997.60-7,220.40

Finding the Fourth Proportional to 21,998.04, 32,997.60 and 7,220.40

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Solution

The fourth proportional to 21,998.04, 32,997.60 and 7,220.40 is: 10,830.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,998.04 : 32,997.60 = 7,220.40 : x
  2. Step 2: Convert to fraction form
    21,998.04/32,997.60 = 7,220.40/x
  3. Step 3: Cross multiply
    21,998.04x = 32,997.60 × 7,220.40
  4. Step 4: Simplify right side
    21,998.04x = 238,255,871.04
  5. Step 5: Solve for x
    x = 238,255,871.04/21,998.04
  6. Step 6: Final answer
    x = 10,830.78

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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.