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Finding the Fourth Proportional to 26,859.80, 40,297.80 and 14,385.80

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Solution

The fourth proportional to 26,859.80, 40,297.80 and 14,385.80 is: 21,583.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,859.80 : 40,297.80 = 14,385.80 : x
  2. Step 2: Convert to fraction form
    26,859.80/40,297.80 = 14,385.80/x
  3. Step 3: Cross multiply
    26,859.80x = 40,297.80 × 14,385.80
  4. Step 4: Simplify right side
    26,859.80x = 579,716,091.24
  5. Step 5: Solve for x
    x = 579,716,091.24/26,859.80
  6. Step 6: Final answer
    x = 21,583.04

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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.