Home / 28,998.72-40,017.96-16,423.56

Finding the Fourth Proportional to 28,998.72, 40,017.96 and 16,423.56

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Solution

The fourth proportional to 28,998.72, 40,017.96 and 16,423.56 is: 22,664.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,998.72 : 40,017.96 = 16,423.56 : x
  2. Step 2: Convert to fraction form
    28,998.72/40,017.96 = 16,423.56/x
  3. Step 3: Cross multiply
    28,998.72x = 40,017.96 × 16,423.56
  4. Step 4: Simplify right side
    28,998.72x = 657,237,367.14
  5. Step 5: Solve for x
    x = 657,237,367.14/28,998.72
  6. Step 6: Final answer
    x = 22,664.36

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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.