Home / 28,634.40-42,955.68-8,914.94

Finding the Fourth Proportional to 28,634.40, 42,955.68 and 8,914.94

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Solution

The fourth proportional to 28,634.40, 42,955.68 and 8,914.94 is: 13,373.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,634.40 : 42,955.68 = 8,914.94 : x
  2. Step 2: Convert to fraction form
    28,634.40/42,955.68 = 8,914.94/x
  3. Step 3: Cross multiply
    28,634.40x = 42,955.68 × 8,914.94
  4. Step 4: Simplify right side
    28,634.40x = 382,947,309.86
  5. Step 5: Solve for x
    x = 382,947,309.86/28,634.40
  6. Step 6: Final answer
    x = 13,373.68

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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.