Home / 28,112.76-42,169.12-7,336.26

Finding the Fourth Proportional to 28,112.76, 42,169.12 and 7,336.26

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Solution

The fourth proportional to 28,112.76, 42,169.12 and 7,336.26 is: 11,004.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,112.76 : 42,169.12 = 7,336.26 : x
  2. Step 2: Convert to fraction form
    28,112.76/42,169.12 = 7,336.26/x
  3. Step 3: Cross multiply
    28,112.76x = 42,169.12 × 7,336.26
  4. Step 4: Simplify right side
    28,112.76x = 309,363,628.29
  5. Step 5: Solve for x
    x = 309,363,628.29/28,112.76
  6. Step 6: Final answer
    x = 11,004.38

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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.