Home / 38,416.60-57,628.74-13,786.84

Finding the Fourth Proportional to 38,416.60, 57,628.74 and 13,786.84

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Solution

The fourth proportional to 38,416.60, 57,628.74 and 13,786.84 is: 20,681.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,416.60 : 57,628.74 = 13,786.84 : x
  2. Step 2: Convert to fraction form
    38,416.60/57,628.74 = 13,786.84/x
  3. Step 3: Cross multiply
    38,416.60x = 57,628.74 × 13,786.84
  4. Step 4: Simplify right side
    38,416.60x = 794,518,217.78
  5. Step 5: Solve for x
    x = 794,518,217.78/38,416.60
  6. Step 6: Final answer
    x = 20,681.64

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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.