Home / 21,329.33-31,997.48-9,487.18

Finding the Fourth Proportional to 21,329.33, 31,997.48 and 9,487.18

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Solution

The fourth proportional to 21,329.33, 31,997.48 and 9,487.18 is: 14,232.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,329.33 : 31,997.48 = 9,487.18 : x
  2. Step 2: Convert to fraction form
    21,329.33/31,997.48 = 9,487.18/x
  3. Step 3: Cross multiply
    21,329.33x = 31,997.48 × 9,487.18
  4. Step 4: Simplify right side
    21,329.33x = 303,565,718.25
  5. Step 5: Solve for x
    x = 303,565,718.25/21,329.33
  6. Step 6: Final answer
    x = 14,232.32

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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.