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Finding the Fourth Proportional to 28,033.40, 42,042.92 and 8,307.34

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Solution

The fourth proportional to 28,033.40, 42,042.92 and 8,307.34 is: 12,458.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,033.40 : 42,042.92 = 8,307.34 : x
  2. Step 2: Convert to fraction form
    28,033.40/42,042.92 = 8,307.34/x
  3. Step 3: Cross multiply
    28,033.40x = 42,042.92 × 8,307.34
  4. Step 4: Simplify right side
    28,033.40x = 349,264,620.82
  5. Step 5: Solve for x
    x = 349,264,620.82/28,033.40
  6. Step 6: Final answer
    x = 12,458.88

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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.