Home / 28,083.14-38,754.74-15,507.88

Finding the Fourth Proportional to 28,083.14, 38,754.74 and 15,507.88

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Solution

The fourth proportional to 28,083.14, 38,754.74 and 15,507.88 is: 21,400.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,083.14 : 38,754.74 = 15,507.88 : x
  2. Step 2: Convert to fraction form
    28,083.14/38,754.74 = 15,507.88/x
  3. Step 3: Cross multiply
    28,083.14x = 38,754.74 × 15,507.88
  4. Step 4: Simplify right side
    28,083.14x = 601,003,857.35
  5. Step 5: Solve for x
    x = 601,003,857.35/28,083.14
  6. Step 6: Final answer
    x = 21,400.88

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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.