Home / 28,271.20-42,406.80-26,845.60

Finding the Fourth Proportional to 28,271.20, 42,406.80 and 26,845.60

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Solution

The fourth proportional to 28,271.20, 42,406.80 and 26,845.60 is: 40,268.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,271.20 : 42,406.80 = 26,845.60 : x
  2. Step 2: Convert to fraction form
    28,271.20/42,406.80 = 26,845.60/x
  3. Step 3: Cross multiply
    28,271.20x = 42,406.80 × 26,845.60
  4. Step 4: Simplify right side
    28,271.20x = 1,138,435,990.08
  5. Step 5: Solve for x
    x = 1,138,435,990.08/28,271.20
  6. Step 6: Final answer
    x = 40,268.40

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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.