Home / 28,469.79-42,730.60-15,153.96

Finding the Fourth Proportional to 28,469.79, 42,730.60 and 15,153.96

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Solution

The fourth proportional to 28,469.79, 42,730.60 and 15,153.96 is: 22,744.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,469.79 : 42,730.60 = 15,153.96 : x
  2. Step 2: Convert to fraction form
    28,469.79/42,730.60 = 15,153.96/x
  3. Step 3: Cross multiply
    28,469.79x = 42,730.60 × 15,153.96
  4. Step 4: Simplify right side
    28,469.79x = 647,537,803.18
  5. Step 5: Solve for x
    x = 647,537,803.18/28,469.79
  6. Step 6: Final answer
    x = 22,744.73

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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.