Home / 26,555.28-39,857.55-13,416.87

Finding the Fourth Proportional to 26,555.28, 39,857.55 and 13,416.87

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Solution

The fourth proportional to 26,555.28, 39,857.55 and 13,416.87 is: 20,137.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,555.28 : 39,857.55 = 13,416.87 : x
  2. Step 2: Convert to fraction form
    26,555.28/39,857.55 = 13,416.87/x
  3. Step 3: Cross multiply
    26,555.28x = 39,857.55 × 13,416.87
  4. Step 4: Simplify right side
    26,555.28x = 534,763,566.87
  5. Step 5: Solve for x
    x = 534,763,566.87/26,555.28
  6. Step 6: Final answer
    x = 20,137.75

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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.