Home / 21,996.04-32,994.60-7,218.40

Finding the Fourth Proportional to 21,996.04, 32,994.60 and 7,218.40

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Solution

The fourth proportional to 21,996.04, 32,994.60 and 7,218.40 is: 10,827.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,996.04 : 32,994.60 = 7,218.40 : x
  2. Step 2: Convert to fraction form
    21,996.04/32,994.60 = 7,218.40/x
  3. Step 3: Cross multiply
    21,996.04x = 32,994.60 × 7,218.40
  4. Step 4: Simplify right side
    21,996.04x = 238,168,220.64
  5. Step 5: Solve for x
    x = 238,168,220.64/21,996.04
  6. Step 6: Final answer
    x = 10,827.78

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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.