Home / 26,516.21-39,695.38-17,128.85

Finding the Fourth Proportional to 26,516.21, 39,695.38 and 17,128.85

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Solution

The fourth proportional to 26,516.21, 39,695.38 and 17,128.85 is: 25,642.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,516.21 : 39,695.38 = 17,128.85 : x
  2. Step 2: Convert to fraction form
    26,516.21/39,695.38 = 17,128.85/x
  3. Step 3: Cross multiply
    26,516.21x = 39,695.38 × 17,128.85
  4. Step 4: Simplify right side
    26,516.21x = 679,935,968.41
  5. Step 5: Solve for x
    x = 679,935,968.41/26,516.21
  6. Step 6: Final answer
    x = 25,642.28

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.