Home / 36,276.40-54,414.60-18,780.40

Finding the Fourth Proportional to 36,276.40, 54,414.60 and 18,780.40

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Solution

The fourth proportional to 36,276.40, 54,414.60 and 18,780.40 is: 28,170.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    36,276.40 : 54,414.60 = 18,780.40 : x
  2. Step 2: Convert to fraction form
    36,276.40/54,414.60 = 18,780.40/x
  3. Step 3: Cross multiply
    36,276.40x = 54,414.60 × 18,780.40
  4. Step 4: Simplify right side
    36,276.40x = 1,021,927,953.84
  5. Step 5: Solve for x
    x = 1,021,927,953.84/36,276.40
  6. Step 6: Final answer
    x = 28,170.60

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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.