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Finding the Fourth Proportional to 43,605.25, 65,417.63 and 15,903.25

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Solution

The fourth proportional to 43,605.25, 65,417.63 and 15,903.25 is: 23,858.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,605.25 : 65,417.63 = 15,903.25 : x
  2. Step 2: Convert to fraction form
    43,605.25/65,417.63 = 15,903.25/x
  3. Step 3: Cross multiply
    43,605.25x = 65,417.63 × 15,903.25
  4. Step 4: Simplify right side
    43,605.25x = 1,040,352,844.78
  5. Step 5: Solve for x
    x = 1,040,352,844.78/43,605.25
  6. Step 6: Final answer
    x = 23,858.43

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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.