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Finding the Fourth Proportional to 28,415.01, 42,622.56 and 8,693.58

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Solution

The fourth proportional to 28,415.01, 42,622.56 and 8,693.58 is: 13,040.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,415.01 : 42,622.56 = 8,693.58 : x
  2. Step 2: Convert to fraction form
    28,415.01/42,622.56 = 8,693.58/x
  3. Step 3: Cross multiply
    28,415.01x = 42,622.56 × 8,693.58
  4. Step 4: Simplify right side
    28,415.01x = 370,542,635.16
  5. Step 5: Solve for x
    x = 370,542,635.16/28,415.01
  6. Step 6: Final answer
    x = 13,040.38

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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.