Home / 21,485.13-32,214.73-9,636.75

Finding the Fourth Proportional to 21,485.13, 32,214.73 and 9,636.75

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Solution

The fourth proportional to 21,485.13, 32,214.73 and 9,636.75 is: 14,449.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,485.13 : 32,214.73 = 9,636.75 : x
  2. Step 2: Convert to fraction form
    21,485.13/32,214.73 = 9,636.75/x
  3. Step 3: Cross multiply
    21,485.13x = 32,214.73 × 9,636.75
  4. Step 4: Simplify right side
    21,485.13x = 310,445,299.33
  5. Step 5: Solve for x
    x = 310,445,299.33/21,485.13
  6. Step 6: Final answer
    x = 14,449.31

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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.