Home / 26,555.19-39,857.42-13,416.78

Finding the Fourth Proportional to 26,555.19, 39,857.42 and 13,416.78

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Solution

The fourth proportional to 26,555.19, 39,857.42 and 13,416.78 is: 20,137.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,555.19 : 39,857.42 = 13,416.78 : x
  2. Step 2: Convert to fraction form
    26,555.19/39,857.42 = 13,416.78/x
  3. Step 3: Cross multiply
    26,555.19x = 39,857.42 × 13,416.78
  4. Step 4: Simplify right side
    26,555.19x = 534,758,343.05
  5. Step 5: Solve for x
    x = 534,758,343.05/26,555.19
  6. Step 6: Final answer
    x = 20,137.62

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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.