Home / 21,971.05-32,956.53-5,331.07

Finding the Fourth Proportional to 21,971.05, 32,956.53 and 5,331.07

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Solution

The fourth proportional to 21,971.05, 32,956.53 and 5,331.07 is: 7,996.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,971.05 : 32,956.53 = 5,331.07 : x
  2. Step 2: Convert to fraction form
    21,971.05/32,956.53 = 5,331.07/x
  3. Step 3: Cross multiply
    21,971.05x = 32,956.53 × 5,331.07
  4. Step 4: Simplify right side
    21,971.05x = 175,693,604.58
  5. Step 5: Solve for x
    x = 175,693,604.58/21,971.05
  6. Step 6: Final answer
    x = 7,996.59

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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.