Home / 19,629.78-29,430.75-9,235.86

Finding the Fourth Proportional to 19,629.78, 29,430.75 and 9,235.86

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Solution

The fourth proportional to 19,629.78, 29,430.75 and 9,235.86 is: 13,847.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,629.78 : 29,430.75 = 9,235.86 : x
  2. Step 2: Convert to fraction form
    19,629.78/29,430.75 = 9,235.86/x
  3. Step 3: Cross multiply
    19,629.78x = 29,430.75 × 9,235.86
  4. Step 4: Simplify right side
    19,629.78x = 271,818,286.70
  5. Step 5: Solve for x
    x = 271,818,286.70/19,629.78
  6. Step 6: Final answer
    x = 13,847.24

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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.