Home / 28,241.28-42,362.22-8,520

Finding the Fourth Proportional to 28,241.28, 42,362.22 and 8,520

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Solution

The fourth proportional to 28,241.28, 42,362.22 and 8,520 is: 12,780.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,241.28 : 42,362.22 = 8,520 : x
  2. Step 2: Convert to fraction form
    28,241.28/42,362.22 = 8,520/x
  3. Step 3: Cross multiply
    28,241.28x = 42,362.22 × 8,520
  4. Step 4: Simplify right side
    28,241.28x = 360,926,114.40
  5. Step 5: Solve for x
    x = 360,926,114.40/28,241.28
  6. Step 6: Final answer
    x = 12,780.09

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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.