Home / 21,727.56-29,985.66-12,297.54

Finding the Fourth Proportional to 21,727.56, 29,985.66 and 12,297.54

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Solution

The fourth proportional to 21,727.56, 29,985.66 and 12,297.54 is: 16,971.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,727.56 : 29,985.66 = 12,297.54 : x
  2. Step 2: Convert to fraction form
    21,727.56/29,985.66 = 12,297.54/x
  3. Step 3: Cross multiply
    21,727.56x = 29,985.66 × 12,297.54
  4. Step 4: Simplify right side
    21,727.56x = 368,749,853.28
  5. Step 5: Solve for x
    x = 368,749,853.28/21,727.56
  6. Step 6: Final answer
    x = 16,971.53

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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.