Home / 30,954.19-42,716.88-16,806.73

Finding the Fourth Proportional to 30,954.19, 42,716.88 and 16,806.73

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Solution

The fourth proportional to 30,954.19, 42,716.88 and 16,806.73 is: 23,193.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,954.19 : 42,716.88 = 16,806.73 : x
  2. Step 2: Convert to fraction form
    30,954.19/42,716.88 = 16,806.73/x
  3. Step 3: Cross multiply
    30,954.19x = 42,716.88 × 16,806.73
  4. Step 4: Simplify right side
    30,954.19x = 717,931,068.60
  5. Step 5: Solve for x
    x = 717,931,068.60/30,954.19
  6. Step 6: Final answer
    x = 23,193.34

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Half scale
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Double scale
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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.