Home / 27,780.13-38,336.28-15,033.01

Finding the Fourth Proportional to 27,780.13, 38,336.28 and 15,033.01

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Solution

The fourth proportional to 27,780.13, 38,336.28 and 15,033.01 is: 20,745.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,780.13 : 38,336.28 = 15,033.01 : x
  2. Step 2: Convert to fraction form
    27,780.13/38,336.28 = 15,033.01/x
  3. Step 3: Cross multiply
    27,780.13x = 38,336.28 × 15,033.01
  4. Step 4: Simplify right side
    27,780.13x = 576,309,680.60
  5. Step 5: Solve for x
    x = 576,309,680.60/27,780.13
  6. Step 6: Final answer
    x = 20,745.39

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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.