Home / 28,938.82-43,363.33-20,071.45

Finding the Fourth Proportional to 28,938.82, 43,363.33 and 20,071.45

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Solution

The fourth proportional to 28,938.82, 43,363.33 and 20,071.45 is: 30,076.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,938.82 : 43,363.33 = 20,071.45 : x
  2. Step 2: Convert to fraction form
    28,938.82/43,363.33 = 20,071.45/x
  3. Step 3: Cross multiply
    28,938.82x = 43,363.33 × 20,071.45
  4. Step 4: Simplify right side
    28,938.82x = 870,364,909.93
  5. Step 5: Solve for x
    x = 870,364,909.93/28,938.82
  6. Step 6: Final answer
    x = 30,076.03

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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.