Home / 30,716.88-42,393.36-17,290.74

Finding the Fourth Proportional to 30,716.88, 42,393.36 and 17,290.74

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Solution

The fourth proportional to 30,716.88, 42,393.36 and 17,290.74 is: 23,863.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,716.88 : 42,393.36 = 17,290.74 : x
  2. Step 2: Convert to fraction form
    30,716.88/42,393.36 = 17,290.74/x
  3. Step 3: Cross multiply
    30,716.88x = 42,393.36 × 17,290.74
  4. Step 4: Simplify right side
    30,716.88x = 733,012,565.49
  5. Step 5: Solve for x
    x = 733,012,565.49/30,716.88
  6. Step 6: Final answer
    x = 23,863.51

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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.