Home / 30,647.28-42,293.60-17,217.74

Finding the Fourth Proportional to 30,647.28, 42,293.60 and 17,217.74

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Solution

The fourth proportional to 30,647.28, 42,293.60 and 17,217.74 is: 23,760.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,647.28 : 42,293.60 = 17,217.74 : x
  2. Step 2: Convert to fraction form
    30,647.28/42,293.60 = 17,217.74/x
  3. Step 3: Cross multiply
    30,647.28x = 42,293.60 × 17,217.74
  4. Step 4: Simplify right side
    30,647.28x = 728,200,208.46
  5. Step 5: Solve for x
    x = 728,200,208.46/30,647.28
  6. Step 6: Final answer
    x = 23,760.68

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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.