Home / 21,277.59-31,915.22-6,485.27

Finding the Fourth Proportional to 21,277.59, 31,915.22 and 6,485.27

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Solution

The fourth proportional to 21,277.59, 31,915.22 and 6,485.27 is: 9,727.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,277.59 : 31,915.22 = 6,485.27 : x
  2. Step 2: Convert to fraction form
    21,277.59/31,915.22 = 6,485.27/x
  3. Step 3: Cross multiply
    21,277.59x = 31,915.22 × 6,485.27
  4. Step 4: Simplify right side
    21,277.59x = 206,978,626.81
  5. Step 5: Solve for x
    x = 206,978,626.81/21,277.59
  6. Step 6: Final answer
    x = 9,727.54

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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.