Home / 27,962.18-38,581.46-20,412.62

Finding the Fourth Proportional to 27,962.18, 38,581.46 and 20,412.62

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Solution

The fourth proportional to 27,962.18, 38,581.46 and 20,412.62 is: 28,164.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,962.18 : 38,581.46 = 20,412.62 : x
  2. Step 2: Convert to fraction form
    27,962.18/38,581.46 = 20,412.62/x
  3. Step 3: Cross multiply
    27,962.18x = 38,581.46 × 20,412.62
  4. Step 4: Simplify right side
    27,962.18x = 787,548,682.03
  5. Step 5: Solve for x
    x = 787,548,682.03/27,962.18
  6. Step 6: Final answer
    x = 28,164.78

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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.