Home / 21,540.42-29,683.44-16,510.32

Finding the Fourth Proportional to 21,540.42, 29,683.44 and 16,510.32

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Solution

The fourth proportional to 21,540.42, 29,683.44 and 16,510.32 is: 22,751.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,540.42 : 29,683.44 = 16,510.32 : x
  2. Step 2: Convert to fraction form
    21,540.42/29,683.44 = 16,510.32/x
  3. Step 3: Cross multiply
    21,540.42x = 29,683.44 × 16,510.32
  4. Step 4: Simplify right side
    21,540.42x = 490,083,093.10
  5. Step 5: Solve for x
    x = 490,083,093.10/21,540.42
  6. Step 6: Final answer
    x = 22,751.79

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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.