Home / 28,681.61-43,033.44-13,889.39

Finding the Fourth Proportional to 28,681.61, 43,033.44 and 13,889.39

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Solution

The fourth proportional to 28,681.61, 43,033.44 and 13,889.39 is: 20,839.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,681.61 : 43,033.44 = 13,889.39 : x
  2. Step 2: Convert to fraction form
    28,681.61/43,033.44 = 13,889.39/x
  3. Step 3: Cross multiply
    28,681.61x = 43,033.44 × 13,889.39
  4. Step 4: Simplify right side
    28,681.61x = 597,708,016.03
  5. Step 5: Solve for x
    x = 597,708,016.03/28,681.61
  6. Step 6: Final answer
    x = 20,839.42

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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.