Home / 21,682.48-32,528.40-6,889.60

Finding the Fourth Proportional to 21,682.48, 32,528.40 and 6,889.60

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Solution

The fourth proportional to 21,682.48, 32,528.40 and 6,889.60 is: 10,335.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,682.48 : 32,528.40 = 6,889.60 : x
  2. Step 2: Convert to fraction form
    21,682.48/32,528.40 = 6,889.60/x
  3. Step 3: Cross multiply
    21,682.48x = 32,528.40 × 6,889.60
  4. Step 4: Simplify right side
    21,682.48x = 224,107,664.64
  5. Step 5: Solve for x
    x = 224,107,664.64/21,682.48
  6. Step 6: Final answer
    x = 10,335.89

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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.