Home / 28,114.05-42,189.30-16,267.80

Finding the Fourth Proportional to 28,114.05, 42,189.30 and 16,267.80

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Solution

The fourth proportional to 28,114.05, 42,189.30 and 16,267.80 is: 24,412.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,114.05 : 42,189.30 = 16,267.80 : x
  2. Step 2: Convert to fraction form
    28,114.05/42,189.30 = 16,267.80/x
  3. Step 3: Cross multiply
    28,114.05x = 42,189.30 × 16,267.80
  4. Step 4: Simplify right side
    28,114.05x = 686,327,094.54
  5. Step 5: Solve for x
    x = 686,327,094.54/28,114.05
  6. Step 6: Final answer
    x = 24,412.25

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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.