Home / 21,515.25-32,272.36-5,720.32

Finding the Fourth Proportional to 21,515.25, 32,272.36 and 5,720.32

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Solution

The fourth proportional to 21,515.25, 32,272.36 and 5,720.32 is: 8,580.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,515.25 : 32,272.36 = 5,720.32 : x
  2. Step 2: Convert to fraction form
    21,515.25/32,272.36 = 5,720.32/x
  3. Step 3: Cross multiply
    21,515.25x = 32,272.36 × 5,720.32
  4. Step 4: Simplify right side
    21,515.25x = 184,608,252.39
  5. Step 5: Solve for x
    x = 184,608,252.39/21,515.25
  6. Step 6: Final answer
    x = 8,580.34

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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.