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Finding the Fourth Proportional to 26,852.80, 40,279.20 and 8,384.80

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Solution

The fourth proportional to 26,852.80, 40,279.20 and 8,384.80 is: 12,577.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,852.80 : 40,279.20 = 8,384.80 : x
  2. Step 2: Convert to fraction form
    26,852.80/40,279.20 = 8,384.80/x
  3. Step 3: Cross multiply
    26,852.80x = 40,279.20 × 8,384.80
  4. Step 4: Simplify right side
    26,852.80x = 337,733,036.16
  5. Step 5: Solve for x
    x = 337,733,036.16/26,852.80
  6. Step 6: Final answer
    x = 12,577.20

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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.