Home / 23,989.16-33,079.92-20,643.32

Finding the Fourth Proportional to 23,989.16, 33,079.92 and 20,643.32

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Solution

The fourth proportional to 23,989.16, 33,079.92 and 20,643.32 is: 28,466.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    23,989.16 : 33,079.92 = 20,643.32 : x
  2. Step 2: Convert to fraction form
    23,989.16/33,079.92 = 20,643.32/x
  3. Step 3: Cross multiply
    23,989.16x = 33,079.92 × 20,643.32
  4. Step 4: Simplify right side
    23,989.16x = 682,879,374.13
  5. Step 5: Solve for x
    x = 682,879,374.13/23,989.16
  6. Step 6: Final answer
    x = 28,466.16

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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.