Home / 40,783.14-56,221.16-28,825.38

Finding the Fourth Proportional to 40,783.14, 56,221.16 and 28,825.38

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Solution

The fourth proportional to 40,783.14, 56,221.16 and 28,825.38 is: 39,736.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,783.14 : 56,221.16 = 28,825.38 : x
  2. Step 2: Convert to fraction form
    40,783.14/56,221.16 = 28,825.38/x
  3. Step 3: Cross multiply
    40,783.14x = 56,221.16 × 28,825.38
  4. Step 4: Simplify right side
    40,783.14x = 1,620,596,156.91
  5. Step 5: Solve for x
    x = 1,620,596,156.91/40,783.14
  6. Step 6: Final answer
    x = 39,736.91

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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.