Home / 34,390.84-47,467.79-20,969.49

Finding the Fourth Proportional to 34,390.84, 47,467.79 and 20,969.49

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Solution

The fourth proportional to 34,390.84, 47,467.79 and 20,969.49 is: 28,943.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    34,390.84 : 47,467.79 = 20,969.49 : x
  2. Step 2: Convert to fraction form
    34,390.84/47,467.79 = 20,969.49/x
  3. Step 3: Cross multiply
    34,390.84x = 47,467.79 × 20,969.49
  4. Step 4: Simplify right side
    34,390.84x = 995,375,400.15
  5. Step 5: Solve for x
    x = 995,375,400.15/34,390.84
  6. Step 6: Final answer
    x = 28,943.04

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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.