Home / 19,343.55-29,015.32-12,768.20

Finding the Fourth Proportional to 19,343.55, 29,015.32 and 12,768.20

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Solution

The fourth proportional to 19,343.55, 29,015.32 and 12,768.20 is: 19,152.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,343.55 : 29,015.32 = 12,768.20 : x
  2. Step 2: Convert to fraction form
    19,343.55/29,015.32 = 12,768.20/x
  3. Step 3: Cross multiply
    19,343.55x = 29,015.32 × 12,768.20
  4. Step 4: Simplify right side
    19,343.55x = 370,473,263.75
  5. Step 5: Solve for x
    x = 370,473,263.75/19,343.55
  6. Step 6: Final answer
    x = 19,152.29

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Similar ratio
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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.