Home / 21,845.60-32,768.40-9,371.60

Finding the Fourth Proportional to 21,845.60, 32,768.40 and 9,371.60

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Solution

The fourth proportional to 21,845.60, 32,768.40 and 9,371.60 is: 14,057.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,845.60 : 32,768.40 = 9,371.60 : x
  2. Step 2: Convert to fraction form
    21,845.60/32,768.40 = 9,371.60/x
  3. Step 3: Cross multiply
    21,845.60x = 32,768.40 × 9,371.60
  4. Step 4: Simplify right side
    21,845.60x = 307,092,337.44
  5. Step 5: Solve for x
    x = 307,092,337.44/21,845.60
  6. Step 6: Final answer
    x = 14,057.40

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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.