Home / 30,966.57-42,734.09-16,819.41

Finding the Fourth Proportional to 30,966.57, 42,734.09 and 16,819.41

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Solution

The fourth proportional to 30,966.57, 42,734.09 and 16,819.41 is: 23,210.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,966.57 : 42,734.09 = 16,819.41 : x
  2. Step 2: Convert to fraction form
    30,966.57/42,734.09 = 16,819.41/x
  3. Step 3: Cross multiply
    30,966.57x = 42,734.09 × 16,819.41
  4. Step 4: Simplify right side
    30,966.57x = 718,762,180.69
  5. Step 5: Solve for x
    x = 718,762,180.69/30,966.57
  6. Step 6: Final answer
    x = 23,210.91

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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.