Home / 29,720.70-40,968.60-22,155.50

Finding the Fourth Proportional to 29,720.70, 40,968.60 and 22,155.50

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Solution

The fourth proportional to 29,720.70, 40,968.60 and 22,155.50 is: 30,540.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    29,720.70 : 40,968.60 = 22,155.50 : x
  2. Step 2: Convert to fraction form
    29,720.70/40,968.60 = 22,155.50/x
  3. Step 3: Cross multiply
    29,720.70x = 40,968.60 × 22,155.50
  4. Step 4: Simplify right side
    29,720.70x = 907,679,817.30
  5. Step 5: Solve for x
    x = 907,679,817.30/29,720.70
  6. Step 6: Final answer
    x = 30,540.32

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.