Home / 35,512.68-49,005.84-20,394.69

Finding the Fourth Proportional to 35,512.68, 49,005.84 and 20,394.69

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Solution

The fourth proportional to 35,512.68, 49,005.84 and 20,394.69 is: 28,143.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    35,512.68 : 49,005.84 = 20,394.69 : x
  2. Step 2: Convert to fraction form
    35,512.68/49,005.84 = 20,394.69/x
  3. Step 3: Cross multiply
    35,512.68x = 49,005.84 × 20,394.69
  4. Step 4: Simplify right side
    35,512.68x = 999,458,914.99
  5. Step 5: Solve for x
    x = 999,458,914.99/35,512.68
  6. Step 6: Final answer
    x = 28,143.72

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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.