Home / 28,356.41-39,127.92-16,415.39

Finding the Fourth Proportional to 28,356.41, 39,127.92 and 16,415.39

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Solution

The fourth proportional to 28,356.41, 39,127.92 and 16,415.39 is: 22,650.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,356.41 : 39,127.92 = 16,415.39 : x
  2. Step 2: Convert to fraction form
    28,356.41/39,127.92 = 16,415.39/x
  3. Step 3: Cross multiply
    28,356.41x = 39,127.92 × 16,415.39
  4. Step 4: Simplify right side
    28,356.41x = 642,300,066.69
  5. Step 5: Solve for x
    x = 642,300,066.69/28,356.41
  6. Step 6: Final answer
    x = 22,650.97

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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.