Home / 28,851.20-43,276.80-26,615.60

Finding the Fourth Proportional to 28,851.20, 43,276.80 and 26,615.60

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Solution

The fourth proportional to 28,851.20, 43,276.80 and 26,615.60 is: 39,923.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,851.20 : 43,276.80 = 26,615.60 : x
  2. Step 2: Convert to fraction form
    28,851.20/43,276.80 = 26,615.60/x
  3. Step 3: Cross multiply
    28,851.20x = 43,276.80 × 26,615.60
  4. Step 4: Simplify right side
    28,851.20x = 1,151,837,998.08
  5. Step 5: Solve for x
    x = 1,151,837,998.08/28,851.20
  6. Step 6: Final answer
    x = 39,923.40

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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.