Home / 30,718.96-42,394.38-17,291.56

Finding the Fourth Proportional to 30,718.96, 42,394.38 and 17,291.56

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Solution

The fourth proportional to 30,718.96, 42,394.38 and 17,291.56 is: 23,863.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,718.96 : 42,394.38 = 17,291.56 : x
  2. Step 2: Convert to fraction form
    30,718.96/42,394.38 = 17,291.56/x
  3. Step 3: Cross multiply
    30,718.96x = 42,394.38 × 17,291.56
  4. Step 4: Simplify right side
    30,718.96x = 733,064,965.43
  5. Step 5: Solve for x
    x = 733,064,965.43/30,718.96
  6. Step 6: Final answer
    x = 23,863.60

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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.