Home / 20,558.01-28,369.49-11,483.13

Finding the Fourth Proportional to 20,558.01, 28,369.49 and 11,483.13

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Solution

The fourth proportional to 20,558.01, 28,369.49 and 11,483.13 is: 15,846.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,558.01 : 28,369.49 = 11,483.13 : x
  2. Step 2: Convert to fraction form
    20,558.01/28,369.49 = 11,483.13/x
  3. Step 3: Cross multiply
    20,558.01x = 28,369.49 × 11,483.13
  4. Step 4: Simplify right side
    20,558.01x = 325,770,484.29
  5. Step 5: Solve for x
    x = 325,770,484.29/20,558.01
  6. Step 6: Final answer
    x = 15,846.40

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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.