Home / 26,418.29-39,590.44-18,987.89

Finding the Fourth Proportional to 26,418.29, 39,590.44 and 18,987.89

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Solution

The fourth proportional to 26,418.29, 39,590.44 and 18,987.89 is: 28,455.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,418.29 : 39,590.44 = 18,987.89 : x
  2. Step 2: Convert to fraction form
    26,418.29/39,590.44 = 18,987.89/x
  3. Step 3: Cross multiply
    26,418.29x = 39,590.44 × 18,987.89
  4. Step 4: Simplify right side
    26,418.29x = 751,738,674.35
  5. Step 5: Solve for x
    x = 751,738,674.35/26,418.29
  6. Step 6: Final answer
    x = 28,455.24

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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.