Home / 28,270.88-42,325.68-22,436

Finding the Fourth Proportional to 28,270.88, 42,325.68 and 22,436

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Solution

The fourth proportional to 28,270.88, 42,325.68 and 22,436 is: 33,590.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,270.88 : 42,325.68 = 22,436 : x
  2. Step 2: Convert to fraction form
    28,270.88/42,325.68 = 22,436/x
  3. Step 3: Cross multiply
    28,270.88x = 42,325.68 × 22,436
  4. Step 4: Simplify right side
    28,270.88x = 949,618,956.48
  5. Step 5: Solve for x
    x = 949,618,956.48/28,270.88
  6. Step 6: Final answer
    x = 33,590.00

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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.