Home / 20,705.58-28,541.43-17,342.46

Finding the Fourth Proportional to 20,705.58, 28,541.43 and 17,342.46

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Solution

The fourth proportional to 20,705.58, 28,541.43 and 17,342.46 is: 23,905.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,705.58 : 28,541.43 = 17,342.46 : x
  2. Step 2: Convert to fraction form
    20,705.58/28,541.43 = 17,342.46/x
  3. Step 3: Cross multiply
    20,705.58x = 28,541.43 × 17,342.46
  4. Step 4: Simplify right side
    20,705.58x = 494,978,608.12
  5. Step 5: Solve for x
    x = 494,978,608.12/20,705.58
  6. Step 6: Final answer
    x = 23,905.57

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.