Home / 30,551.92-42,162.36-17,122.56

Finding the Fourth Proportional to 30,551.92, 42,162.36 and 17,122.56

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Solution

The fourth proportional to 30,551.92, 42,162.36 and 17,122.56 is: 23,629.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,551.92 : 42,162.36 = 17,122.56 : x
  2. Step 2: Convert to fraction form
    30,551.92/42,162.36 = 17,122.56/x
  3. Step 3: Cross multiply
    30,551.92x = 42,162.36 × 17,122.56
  4. Step 4: Simplify right side
    30,551.92x = 721,927,538.84
  5. Step 5: Solve for x
    x = 721,927,538.84/30,551.92
  6. Step 6: Final answer
    x = 23,629.53

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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.