Home / 21,317.34-31,970.82-9,464.60

Finding the Fourth Proportional to 21,317.34, 31,970.82 and 9,464.60

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Solution

The fourth proportional to 21,317.34, 31,970.82 and 9,464.60 is: 14,194.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,317.34 : 31,970.82 = 9,464.60 : x
  2. Step 2: Convert to fraction form
    21,317.34/31,970.82 = 9,464.60/x
  3. Step 3: Cross multiply
    21,317.34x = 31,970.82 × 9,464.60
  4. Step 4: Simplify right side
    21,317.34x = 302,591,022.97
  5. Step 5: Solve for x
    x = 302,591,022.97/21,317.34
  6. Step 6: Final answer
    x = 14,194.60

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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.