Home / 28,267.88-42,321.18-22,433

Finding the Fourth Proportional to 28,267.88, 42,321.18 and 22,433

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Solution

The fourth proportional to 28,267.88, 42,321.18 and 22,433 is: 33,585.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,267.88 : 42,321.18 = 22,433 : x
  2. Step 2: Convert to fraction form
    28,267.88/42,321.18 = 22,433/x
  3. Step 3: Cross multiply
    28,267.88x = 42,321.18 × 22,433
  4. Step 4: Simplify right side
    28,267.88x = 949,391,030.94
  5. Step 5: Solve for x
    x = 949,391,030.94/28,267.88
  6. Step 6: Final answer
    x = 33,585.51

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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.