Home / 26,389.87-36,418.07-14,290.48

Finding the Fourth Proportional to 26,389.87, 36,418.07 and 14,290.48

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Solution

The fourth proportional to 26,389.87, 36,418.07 and 14,290.48 is: 19,720.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,389.87 : 36,418.07 = 14,290.48 : x
  2. Step 2: Convert to fraction form
    26,389.87/36,418.07 = 14,290.48/x
  3. Step 3: Cross multiply
    26,389.87x = 36,418.07 × 14,290.48
  4. Step 4: Simplify right side
    26,389.87x = 520,431,782.22
  5. Step 5: Solve for x
    x = 520,431,782.22/26,389.87
  6. Step 6: Final answer
    x = 19,720.89

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.