Home / 28,338.55-39,112.10-16,408.47

Finding the Fourth Proportional to 28,338.55, 39,112.10 and 16,408.47

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Solution

The fourth proportional to 28,338.55, 39,112.10 and 16,408.47 is: 22,646.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,338.55 : 39,112.10 = 16,408.47 : x
  2. Step 2: Convert to fraction form
    28,338.55/39,112.10 = 16,408.47/x
  3. Step 3: Cross multiply
    28,338.55x = 39,112.10 × 16,408.47
  4. Step 4: Simplify right side
    28,338.55x = 641,769,719.49
  5. Step 5: Solve for x
    x = 641,769,719.49/28,338.55
  6. Step 6: Final answer
    x = 22,646.53

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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.