Home / 38,476.89-57,722.63-12,179.43

Finding the Fourth Proportional to 38,476.89, 57,722.63 and 12,179.43

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Solution

The fourth proportional to 38,476.89, 57,722.63 and 12,179.43 is: 18,271.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,476.89 : 57,722.63 = 12,179.43 : x
  2. Step 2: Convert to fraction form
    38,476.89/57,722.63 = 12,179.43/x
  3. Step 3: Cross multiply
    38,476.89x = 57,722.63 × 12,179.43
  4. Step 4: Simplify right side
    38,476.89x = 703,028,670.60
  5. Step 5: Solve for x
    x = 703,028,670.60/38,476.89
  6. Step 6: Final answer
    x = 18,271.45

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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.