Home / 27,785.54-38,343.71-15,038.42

Finding the Fourth Proportional to 27,785.54, 38,343.71 and 15,038.42

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Solution

The fourth proportional to 27,785.54, 38,343.71 and 15,038.42 is: 20,752.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,785.54 : 38,343.71 = 15,038.42 : x
  2. Step 2: Convert to fraction form
    27,785.54/38,343.71 = 15,038.42/x
  3. Step 3: Cross multiply
    27,785.54x = 38,343.71 × 15,038.42
  4. Step 4: Simplify right side
    27,785.54x = 576,628,548.43
  5. Step 5: Solve for x
    x = 576,628,548.43/27,785.54
  6. Step 6: Final answer
    x = 20,752.83

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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.