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Finding the Fourth Proportional to 28,863, 43,071.15 and 25,752.60

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Solution

The fourth proportional to 28,863, 43,071.15 and 25,752.60 is: 38,429.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,863 : 43,071.15 = 25,752.60 : x
  2. Step 2: Convert to fraction form
    28,863/43,071.15 = 25,752.60/x
  3. Step 3: Cross multiply
    28,863x = 43,071.15 × 25,752.60
  4. Step 4: Simplify right side
    28,863x = 1,109,194,097.49
  5. Step 5: Solve for x
    x = 1,109,194,097.49/28,863
  6. Step 6: Final answer
    x = 38,429.62

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.