Home / 34,890.84-48,153.96-20,751.48

Finding the Fourth Proportional to 34,890.84, 48,153.96 and 20,751.48

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Solution

The fourth proportional to 34,890.84, 48,153.96 and 20,751.48 is: 28,639.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    34,890.84 : 48,153.96 = 20,751.48 : x
  2. Step 2: Convert to fraction form
    34,890.84/48,153.96 = 20,751.48/x
  3. Step 3: Cross multiply
    34,890.84x = 48,153.96 × 20,751.48
  4. Step 4: Simplify right side
    34,890.84x = 999,265,937.86
  5. Step 5: Solve for x
    x = 999,265,937.86/34,890.84
  6. Step 6: Final answer
    x = 28,639.78

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.