Home / 30,966.76-42,732.84-16,819.24

Finding the Fourth Proportional to 30,966.76, 42,732.84 and 16,819.24

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Solution

The fourth proportional to 30,966.76, 42,732.84 and 16,819.24 is: 23,209.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,966.76 : 42,732.84 = 16,819.24 : x
  2. Step 2: Convert to fraction form
    30,966.76/42,732.84 = 16,819.24/x
  3. Step 3: Cross multiply
    30,966.76x = 42,732.84 × 16,819.24
  4. Step 4: Simplify right side
    30,966.76x = 718,733,891.84
  5. Step 5: Solve for x
    x = 718,733,891.84/30,966.76
  6. Step 6: Final answer
    x = 23,209.85

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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.