Home / 28,366.14-39,116.25-18,802.71

Finding the Fourth Proportional to 28,366.14, 39,116.25 and 18,802.71

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Solution

The fourth proportional to 28,366.14, 39,116.25 and 18,802.71 is: 25,928.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,366.14 : 39,116.25 = 18,802.71 : x
  2. Step 2: Convert to fraction form
    28,366.14/39,116.25 = 18,802.71/x
  3. Step 3: Cross multiply
    28,366.14x = 39,116.25 × 18,802.71
  4. Step 4: Simplify right side
    28,366.14x = 735,491,505.04
  5. Step 5: Solve for x
    x = 735,491,505.04/28,366.14
  6. Step 6: Final answer
    x = 25,928.50

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1.5x scale

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.