Home / 43,613.20-65,419.80-28,838.80

Finding the Fourth Proportional to 43,613.20, 65,419.80 and 28,838.80

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Solution

The fourth proportional to 43,613.20, 65,419.80 and 28,838.80 is: 43,258.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,613.20 : 65,419.80 = 28,838.80 : x
  2. Step 2: Convert to fraction form
    43,613.20/65,419.80 = 28,838.80/x
  3. Step 3: Cross multiply
    43,613.20x = 65,419.80 × 28,838.80
  4. Step 4: Simplify right side
    43,613.20x = 1,886,628,528.24
  5. Step 5: Solve for x
    x = 1,886,628,528.24/43,613.20
  6. Step 6: Final answer
    x = 43,258.20

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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.