Home / 30,956.49-42,719.22-16,809.03

Finding the Fourth Proportional to 30,956.49, 42,719.22 and 16,809.03

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Solution

The fourth proportional to 30,956.49, 42,719.22 and 16,809.03 is: 23,196.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,956.49 : 42,719.22 = 16,809.03 : x
  2. Step 2: Convert to fraction form
    30,956.49/42,719.22 = 16,809.03/x
  3. Step 3: Cross multiply
    30,956.49x = 42,719.22 × 16,809.03
  4. Step 4: Simplify right side
    30,956.49x = 718,068,650.56
  5. Step 5: Solve for x
    x = 718,068,650.56/30,956.49
  6. Step 6: Final answer
    x = 23,196.06

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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.