Home / 19,621.10-29,431.73-4,830.02

Finding the Fourth Proportional to 19,621.10, 29,431.73 and 4,830.02

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Solution

The fourth proportional to 19,621.10, 29,431.73 and 4,830.02 is: 7,245.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,621.10 : 29,431.73 = 4,830.02 : x
  2. Step 2: Convert to fraction form
    19,621.10/29,431.73 = 4,830.02/x
  3. Step 3: Cross multiply
    19,621.10x = 29,431.73 × 4,830.02
  4. Step 4: Simplify right side
    19,621.10x = 142,155,844.53
  5. Step 5: Solve for x
    x = 142,155,844.53/19,621.10
  6. Step 6: Final answer
    x = 7,245.05

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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.