Home / 26,928.07-40,392.12-12,884.80

Finding the Fourth Proportional to 26,928.07, 40,392.12 and 12,884.80

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Solution

The fourth proportional to 26,928.07, 40,392.12 and 12,884.80 is: 19,327.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,928.07 : 40,392.12 = 12,884.80 : x
  2. Step 2: Convert to fraction form
    26,928.07/40,392.12 = 12,884.80/x
  3. Step 3: Cross multiply
    26,928.07x = 40,392.12 × 12,884.80
  4. Step 4: Simplify right side
    26,928.07x = 520,444,387.78
  5. Step 5: Solve for x
    x = 520,444,387.78/26,928.07
  6. Step 6: Final answer
    x = 19,327.21

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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.