Home / 40,003.67-55,205.09-21,854.64

Finding the Fourth Proportional to 40,003.67, 55,205.09 and 21,854.64

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Solution

The fourth proportional to 40,003.67, 55,205.09 and 21,854.64 is: 30,159.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,003.67 : 55,205.09 = 21,854.64 : x
  2. Step 2: Convert to fraction form
    40,003.67/55,205.09 = 21,854.64/x
  3. Step 3: Cross multiply
    40,003.67x = 55,205.09 × 21,854.64
  4. Step 4: Simplify right side
    40,003.67x = 1,206,487,368.12
  5. Step 5: Solve for x
    x = 1,206,487,368.12/40,003.67
  6. Step 6: Final answer
    x = 30,159.42

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.