Home / 19,938.76-27,516.24-10,986.64

Finding the Fourth Proportional to 19,938.76, 27,516.24 and 10,986.64

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Solution

The fourth proportional to 19,938.76, 27,516.24 and 10,986.64 is: 15,161.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,938.76 : 27,516.24 = 10,986.64 : x
  2. Step 2: Convert to fraction form
    19,938.76/27,516.24 = 10,986.64/x
  3. Step 3: Cross multiply
    19,938.76x = 27,516.24 × 10,986.64
  4. Step 4: Simplify right side
    19,938.76x = 302,311,023.03
  5. Step 5: Solve for x
    x = 302,311,023.03/19,938.76
  6. Step 6: Final answer
    x = 15,161.98

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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.