Home / 28,788.20-43,182.30-12,404.20

Finding the Fourth Proportional to 28,788.20, 43,182.30 and 12,404.20

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Solution

The fourth proportional to 28,788.20, 43,182.30 and 12,404.20 is: 18,606.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,788.20 : 43,182.30 = 12,404.20 : x
  2. Step 2: Convert to fraction form
    28,788.20/43,182.30 = 12,404.20/x
  3. Step 3: Cross multiply
    28,788.20x = 43,182.30 × 12,404.20
  4. Step 4: Simplify right side
    28,788.20x = 535,641,885.66
  5. Step 5: Solve for x
    x = 535,641,885.66/28,788.20
  6. Step 6: Final answer
    x = 18,606.30

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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.