Home / 26,291.71-39,412.32-13,131.64

Finding the Fourth Proportional to 26,291.71, 39,412.32 and 13,131.64

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Solution

The fourth proportional to 26,291.71, 39,412.32 and 13,131.64 is: 19,684.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,291.71 : 39,412.32 = 13,131.64 : x
  2. Step 2: Convert to fraction form
    26,291.71/39,412.32 = 13,131.64/x
  3. Step 3: Cross multiply
    26,291.71x = 39,412.32 × 13,131.64
  4. Step 4: Simplify right side
    26,291.71x = 517,548,397.80
  5. Step 5: Solve for x
    x = 517,548,397.80/26,291.71
  6. Step 6: Final answer
    x = 19,684.85

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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.