Home / 21,921.36-32,868.90-10,654.51

Finding the Fourth Proportional to 21,921.36, 32,868.90 and 10,654.51

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Solution

The fourth proportional to 21,921.36, 32,868.90 and 10,654.51 is: 15,975.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,921.36 : 32,868.90 = 10,654.51 : x
  2. Step 2: Convert to fraction form
    21,921.36/32,868.90 = 10,654.51/x
  3. Step 3: Cross multiply
    21,921.36x = 32,868.90 × 10,654.51
  4. Step 4: Simplify right side
    21,921.36x = 350,201,996.34
  5. Step 5: Solve for x
    x = 350,201,996.34/21,921.36
  6. Step 6: Final answer
    x = 15,975.38

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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.