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Finding the Fourth Proportional to 26,994.40, 40,405.20 and 14,483.68

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Solution

The fourth proportional to 26,994.40, 40,405.20 and 14,483.68 is: 21,679.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,994.40 : 40,405.20 = 14,483.68 : x
  2. Step 2: Convert to fraction form
    26,994.40/40,405.20 = 14,483.68/x
  3. Step 3: Cross multiply
    26,994.40x = 40,405.20 × 14,483.68
  4. Step 4: Simplify right side
    26,994.40x = 585,215,987.14
  5. Step 5: Solve for x
    x = 585,215,987.14/26,994.40
  6. Step 6: Final answer
    x = 21,679.16

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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.