Home / 19,620.10-29,430.23-4,829.02

Finding the Fourth Proportional to 19,620.10, 29,430.23 and 4,829.02

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Solution

The fourth proportional to 19,620.10, 29,430.23 and 4,829.02 is: 7,243.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,620.10 : 29,430.23 = 4,829.02 : x
  2. Step 2: Convert to fraction form
    19,620.10/29,430.23 = 4,829.02/x
  3. Step 3: Cross multiply
    19,620.10x = 29,430.23 × 4,829.02
  4. Step 4: Simplify right side
    19,620.10x = 142,119,169.27
  5. Step 5: Solve for x
    x = 142,119,169.27/19,620.10
  6. Step 6: Final answer
    x = 7,243.55

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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.