Home / 39,279.60-58,847.40-18,457.20

Finding the Fourth Proportional to 39,279.60, 58,847.40 and 18,457.20

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Solution

The fourth proportional to 39,279.60, 58,847.40 and 18,457.20 is: 27,651.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,279.60 : 58,847.40 = 18,457.20 : x
  2. Step 2: Convert to fraction form
    39,279.60/58,847.40 = 18,457.20/x
  3. Step 3: Cross multiply
    39,279.60x = 58,847.40 × 18,457.20
  4. Step 4: Simplify right side
    39,279.60x = 1,086,158,231.28
  5. Step 5: Solve for x
    x = 1,086,158,231.28/39,279.60
  6. Step 6: Final answer
    x = 27,651.97

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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.