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Finding the Fourth Proportional to 21,344.60, 32,016.90 and 14,783.60

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Solution

The fourth proportional to 21,344.60, 32,016.90 and 14,783.60 is: 22,175.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,344.60 : 32,016.90 = 14,783.60 : x
  2. Step 2: Convert to fraction form
    21,344.60/32,016.90 = 14,783.60/x
  3. Step 3: Cross multiply
    21,344.60x = 32,016.90 × 14,783.60
  4. Step 4: Simplify right side
    21,344.60x = 473,325,042.84
  5. Step 5: Solve for x
    x = 473,325,042.84/21,344.60
  6. Step 6: Final answer
    x = 22,175.40

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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.