Home / 43,678.32-65,517.12-12,513.60

Finding the Fourth Proportional to 43,678.32, 65,517.12 and 12,513.60

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Solution

The fourth proportional to 43,678.32, 65,517.12 and 12,513.60 is: 18,770.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,678.32 : 65,517.12 = 12,513.60 : x
  2. Step 2: Convert to fraction form
    43,678.32/65,517.12 = 12,513.60/x
  3. Step 3: Cross multiply
    43,678.32x = 65,517.12 × 12,513.60
  4. Step 4: Simplify right side
    43,678.32x = 819,855,032.83
  5. Step 5: Solve for x
    x = 819,855,032.83/43,678.32
  6. Step 6: Final answer
    x = 18,770.30

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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.