Home / 21,816.36-32,757.36-13,090.32

Finding the Fourth Proportional to 21,816.36, 32,757.36 and 13,090.32

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Solution

The fourth proportional to 21,816.36, 32,757.36 and 13,090.32 is: 19,655.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,816.36 : 32,757.36 = 13,090.32 : x
  2. Step 2: Convert to fraction form
    21,816.36/32,757.36 = 13,090.32/x
  3. Step 3: Cross multiply
    21,816.36x = 32,757.36 × 13,090.32
  4. Step 4: Simplify right side
    21,816.36x = 428,804,324.76
  5. Step 5: Solve for x
    x = 428,804,324.76/21,816.36
  6. Step 6: Final answer
    x = 19,655.17

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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.