Home / 26,884.80-40,370.40-20,318.40

Finding the Fourth Proportional to 26,884.80, 40,370.40 and 20,318.40

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Solution

The fourth proportional to 26,884.80, 40,370.40 and 20,318.40 is: 30,510.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,884.80 : 40,370.40 = 20,318.40 : x
  2. Step 2: Convert to fraction form
    26,884.80/40,370.40 = 20,318.40/x
  3. Step 3: Cross multiply
    26,884.80x = 40,370.40 × 20,318.40
  4. Step 4: Simplify right side
    26,884.80x = 820,261,935.36
  5. Step 5: Solve for x
    x = 820,261,935.36/26,884.80
  6. Step 6: Final answer
    x = 30,510.25

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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.