Home / 18,380.40-27,570.60-10,582.80

Finding the Fourth Proportional to 18,380.40, 27,570.60 and 10,582.80

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Solution

The fourth proportional to 18,380.40, 27,570.60 and 10,582.80 is: 15,874.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,380.40 : 27,570.60 = 10,582.80 : x
  2. Step 2: Convert to fraction form
    18,380.40/27,570.60 = 10,582.80/x
  3. Step 3: Cross multiply
    18,380.40x = 27,570.60 × 10,582.80
  4. Step 4: Simplify right side
    18,380.40x = 291,774,145.68
  5. Step 5: Solve for x
    x = 291,774,145.68/18,380.40
  6. Step 6: Final answer
    x = 15,874.20

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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.