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Finding the Fourth Proportional to 21,673.44, 32,536.08 and 12,912.48

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Solution

The fourth proportional to 21,673.44, 32,536.08 and 12,912.48 is: 19,384.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,673.44 : 32,536.08 = 12,912.48 : x
  2. Step 2: Convert to fraction form
    21,673.44/32,536.08 = 12,912.48/x
  3. Step 3: Cross multiply
    21,673.44x = 32,536.08 × 12,912.48
  4. Step 4: Simplify right side
    21,673.44x = 420,121,482.28
  5. Step 5: Solve for x
    x = 420,121,482.28/21,673.44
  6. Step 6: Final answer
    x = 19,384.16

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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.