Home / 22,021.40-32,999.70-18,716.60

Finding the Fourth Proportional to 22,021.40, 32,999.70 and 18,716.60

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Solution

The fourth proportional to 22,021.40, 32,999.70 and 18,716.60 is: 28,047.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,021.40 : 32,999.70 = 18,716.60 : x
  2. Step 2: Convert to fraction form
    22,021.40/32,999.70 = 18,716.60/x
  3. Step 3: Cross multiply
    22,021.40x = 32,999.70 × 18,716.60
  4. Step 4: Simplify right side
    22,021.40x = 617,642,185.02
  5. Step 5: Solve for x
    x = 617,642,185.02/22,021.40
  6. Step 6: Final answer
    x = 28,047.36

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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.