Home / 39,771.32-54,885.70-21,867.62

Finding the Fourth Proportional to 39,771.32, 54,885.70 and 21,867.62

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Solution

The fourth proportional to 39,771.32, 54,885.70 and 21,867.62 is: 30,178.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,771.32 : 54,885.70 = 21,867.62 : x
  2. Step 2: Convert to fraction form
    39,771.32/54,885.70 = 21,867.62/x
  3. Step 3: Cross multiply
    39,771.32x = 54,885.70 × 21,867.62
  4. Step 4: Simplify right side
    39,771.32x = 1,200,219,631.03
  5. Step 5: Solve for x
    x = 1,200,219,631.03/39,771.32
  6. Step 6: Final answer
    x = 30,178.02

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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.