Home / 28,191.20-42,258.99-12,404.75

Finding the Fourth Proportional to 28,191.20, 42,258.99 and 12,404.75

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Solution

The fourth proportional to 28,191.20, 42,258.99 and 12,404.75 is: 18,594.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,191.20 : 42,258.99 = 12,404.75 : x
  2. Step 2: Convert to fraction form
    28,191.20/42,258.99 = 12,404.75/x
  3. Step 3: Cross multiply
    28,191.20x = 42,258.99 × 12,404.75
  4. Step 4: Simplify right side
    28,191.20x = 524,212,206.20
  5. Step 5: Solve for x
    x = 524,212,206.20/28,191.20
  6. Step 6: Final answer
    x = 18,594.89

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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.