Home / 28,029.31-42,042.75-6,968.91

Finding the Fourth Proportional to 28,029.31, 42,042.75 and 6,968.91

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Solution

The fourth proportional to 28,029.31, 42,042.75 and 6,968.91 is: 10,453.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,029.31 : 42,042.75 = 6,968.91 : x
  2. Step 2: Convert to fraction form
    28,029.31/42,042.75 = 6,968.91/x
  3. Step 3: Cross multiply
    28,029.31x = 42,042.75 × 6,968.91
  4. Step 4: Simplify right side
    28,029.31x = 292,992,140.90
  5. Step 5: Solve for x
    x = 292,992,140.90/28,029.31
  6. Step 6: Final answer
    x = 10,453.06

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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.