Home / 36,435.60-54,619.28-19,771.20

Finding the Fourth Proportional to 36,435.60, 54,619.28 and 19,771.20

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Solution

The fourth proportional to 36,435.60, 54,619.28 and 19,771.20 is: 29,638.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    36,435.60 : 54,619.28 = 19,771.20 : x
  2. Step 2: Convert to fraction form
    36,435.60/54,619.28 = 19,771.20/x
  3. Step 3: Cross multiply
    36,435.60x = 54,619.28 × 19,771.20
  4. Step 4: Simplify right side
    36,435.60x = 1,079,888,708.74
  5. Step 5: Solve for x
    x = 1,079,888,708.74/36,435.60
  6. Step 6: Final answer
    x = 29,638.29

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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.