Home / 27,830.14-38,405.72-15,083.34

Finding the Fourth Proportional to 27,830.14, 38,405.72 and 15,083.34

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Solution

The fourth proportional to 27,830.14, 38,405.72 and 15,083.34 is: 20,815.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,830.14 : 38,405.72 = 15,083.34 : x
  2. Step 2: Convert to fraction form
    27,830.14/38,405.72 = 15,083.34/x
  3. Step 3: Cross multiply
    27,830.14x = 38,405.72 × 15,083.34
  4. Step 4: Simplify right side
    27,830.14x = 579,286,532.70
  5. Step 5: Solve for x
    x = 579,286,532.70/27,830.14
  6. Step 6: Final answer
    x = 20,815.08

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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.