Home / 27,120.40-40,686.84-12,333.58

Finding the Fourth Proportional to 27,120.40, 40,686.84 and 12,333.58

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Solution

The fourth proportional to 27,120.40, 40,686.84 and 12,333.58 is: 18,503.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,120.40 : 40,686.84 = 12,333.58 : x
  2. Step 2: Convert to fraction form
    27,120.40/40,686.84 = 12,333.58/x
  3. Step 3: Cross multiply
    27,120.40x = 40,686.84 × 12,333.58
  4. Step 4: Simplify right side
    27,120.40x = 501,814,396.09
  5. Step 5: Solve for x
    x = 501,814,396.09/27,120.40
  6. Step 6: Final answer
    x = 18,503.21

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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.