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Finding the Fourth Proportional to 30,945.25, 46,410.41 and 14,289.27

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Solution

The fourth proportional to 30,945.25, 46,410.41 and 14,289.27 is: 21,430.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,945.25 : 46,410.41 = 14,289.27 : x
  2. Step 2: Convert to fraction form
    30,945.25/46,410.41 = 14,289.27/x
  3. Step 3: Cross multiply
    30,945.25x = 46,410.41 × 14,289.27
  4. Step 4: Simplify right side
    30,945.25x = 663,170,807.85
  5. Step 5: Solve for x
    x = 663,170,807.85/30,945.25
  6. Step 6: Final answer
    x = 21,430.46

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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.