Home / 19,346.56-29,019.83-12,771.20

Finding the Fourth Proportional to 19,346.56, 29,019.83 and 12,771.20

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Solution

The fourth proportional to 19,346.56, 29,019.83 and 12,771.20 is: 19,156.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,346.56 : 29,019.83 = 12,771.20 : x
  2. Step 2: Convert to fraction form
    19,346.56/29,019.83 = 12,771.20/x
  3. Step 3: Cross multiply
    19,346.56x = 29,019.83 × 12,771.20
  4. Step 4: Simplify right side
    19,346.56x = 370,618,052.90
  5. Step 5: Solve for x
    x = 370,618,052.90/19,346.56
  6. Step 6: Final answer
    x = 19,156.80

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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.