Home / 21,090.96-29,104.74-11,659.32

Finding the Fourth Proportional to 21,090.96, 29,104.74 and 11,659.32

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Solution

The fourth proportional to 21,090.96, 29,104.74 and 11,659.32 is: 16,089.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,090.96 : 29,104.74 = 11,659.32 : x
  2. Step 2: Convert to fraction form
    21,090.96/29,104.74 = 11,659.32/x
  3. Step 3: Cross multiply
    21,090.96x = 29,104.74 × 11,659.32
  4. Step 4: Simplify right side
    21,090.96x = 339,341,477.18
  5. Step 5: Solve for x
    x = 339,341,477.18/21,090.96
  6. Step 6: Final answer
    x = 16,089.43

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.