Home / 28,740.80-42,857.38-25,245.11

Finding the Fourth Proportional to 28,740.80, 42,857.38 and 25,245.11

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Solution

The fourth proportional to 28,740.80, 42,857.38 and 25,245.11 is: 37,644.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,740.80 : 42,857.38 = 25,245.11 : x
  2. Step 2: Convert to fraction form
    28,740.80/42,857.38 = 25,245.11/x
  3. Step 3: Cross multiply
    28,740.80x = 42,857.38 × 25,245.11
  4. Step 4: Simplify right side
    28,740.80x = 1,081,939,272.41
  5. Step 5: Solve for x
    x = 1,081,939,272.41/28,740.80
  6. Step 6: Final answer
    x = 37,644.72

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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.