Home / 28,289.37-42,428.59-26,884.43

Finding the Fourth Proportional to 28,289.37, 42,428.59 and 26,884.43

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Solution

The fourth proportional to 28,289.37, 42,428.59 and 26,884.43 is: 40,321.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,289.37 : 42,428.59 = 26,884.43 : x
  2. Step 2: Convert to fraction form
    28,289.37/42,428.59 = 26,884.43/x
  3. Step 3: Cross multiply
    28,289.37x = 42,428.59 × 26,884.43
  4. Step 4: Simplify right side
    28,289.37x = 1,140,668,178.50
  5. Step 5: Solve for x
    x = 1,140,668,178.50/28,289.37
  6. Step 6: Final answer
    x = 40,321.44

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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.