Home / 38,823.83-58,221.41-13,857.20

Finding the Fourth Proportional to 38,823.83, 58,221.41 and 13,857.20

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Solution

The fourth proportional to 38,823.83, 58,221.41 and 13,857.20 is: 20,780.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,823.83 : 58,221.41 = 13,857.20 : x
  2. Step 2: Convert to fraction form
    38,823.83/58,221.41 = 13,857.20/x
  3. Step 3: Cross multiply
    38,823.83x = 58,221.41 × 13,857.20
  4. Step 4: Simplify right side
    38,823.83x = 806,785,362.26
  5. Step 5: Solve for x
    x = 806,785,362.26/38,823.83
  6. Step 6: Final answer
    x = 20,780.68

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.