Home / 20,581.16-28,400.51-12,083.63

Finding the Fourth Proportional to 20,581.16, 28,400.51 and 12,083.63

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Solution

The fourth proportional to 20,581.16, 28,400.51 and 12,083.63 is: 16,674.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,581.16 : 28,400.51 = 12,083.63 : x
  2. Step 2: Convert to fraction form
    20,581.16/28,400.51 = 12,083.63/x
  3. Step 3: Cross multiply
    20,581.16x = 28,400.51 × 12,083.63
  4. Step 4: Simplify right side
    20,581.16x = 343,181,052.23
  5. Step 5: Solve for x
    x = 343,181,052.23/20,581.16
  6. Step 6: Final answer
    x = 16,674.53

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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.