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Finding the Fourth Proportional to 43,625.60, 65,438.40 and 15,934.40

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Solution

The fourth proportional to 43,625.60, 65,438.40 and 15,934.40 is: 23,901.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,625.60 : 65,438.40 = 15,934.40 : x
  2. Step 2: Convert to fraction form
    43,625.60/65,438.40 = 15,934.40/x
  3. Step 3: Cross multiply
    43,625.60x = 65,438.40 × 15,934.40
  4. Step 4: Simplify right side
    43,625.60x = 1,042,721,640.96
  5. Step 5: Solve for x
    x = 1,042,721,640.96/43,625.60
  6. Step 6: Final answer
    x = 23,901.60

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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.