Home / 28,996.73-40,015.49-16,421.48

Finding the Fourth Proportional to 28,996.73, 40,015.49 and 16,421.48

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Solution

The fourth proportional to 28,996.73, 40,015.49 and 16,421.48 is: 22,661.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,996.73 : 40,015.49 = 16,421.48 : x
  2. Step 2: Convert to fraction form
    28,996.73/40,015.49 = 16,421.48/x
  3. Step 3: Cross multiply
    28,996.73x = 40,015.49 × 16,421.48
  4. Step 4: Simplify right side
    28,996.73x = 657,113,800.24
  5. Step 5: Solve for x
    x = 657,113,800.24/28,996.73
  6. Step 6: Final answer
    x = 22,661.65

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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.