Home / 43,643.40-65,465.10-28,771.80

Finding the Fourth Proportional to 43,643.40, 65,465.10 and 28,771.80

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Solution

The fourth proportional to 43,643.40, 65,465.10 and 28,771.80 is: 43,157.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,643.40 : 65,465.10 = 28,771.80 : x
  2. Step 2: Convert to fraction form
    43,643.40/65,465.10 = 28,771.80/x
  3. Step 3: Cross multiply
    43,643.40x = 65,465.10 × 28,771.80
  4. Step 4: Simplify right side
    43,643.40x = 1,883,548,764.18
  5. Step 5: Solve for x
    x = 1,883,548,764.18/43,643.40
  6. Step 6: Final answer
    x = 43,157.70

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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.