Home / 28,095.14-38,770.77-15,519.62

Finding the Fourth Proportional to 28,095.14, 38,770.77 and 15,519.62

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Solution

The fourth proportional to 28,095.14, 38,770.77 and 15,519.62 is: 21,416.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,095.14 : 38,770.77 = 15,519.62 : x
  2. Step 2: Convert to fraction form
    28,095.14/38,770.77 = 15,519.62/x
  3. Step 3: Cross multiply
    28,095.14x = 38,770.77 × 15,519.62
  4. Step 4: Simplify right side
    28,095.14x = 601,707,617.51
  5. Step 5: Solve for x
    x = 601,707,617.51/28,095.14
  6. Step 6: Final answer
    x = 21,416.79

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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.