Home / 28,363.10-42,544.65-12,811.10

Finding the Fourth Proportional to 28,363.10, 42,544.65 and 12,811.10

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Solution

The fourth proportional to 28,363.10, 42,544.65 and 12,811.10 is: 19,216.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,363.10 : 42,544.65 = 12,811.10 : x
  2. Step 2: Convert to fraction form
    28,363.10/42,544.65 = 12,811.10/x
  3. Step 3: Cross multiply
    28,363.10x = 42,544.65 × 12,811.10
  4. Step 4: Simplify right side
    28,363.10x = 545,043,765.62
  5. Step 5: Solve for x
    x = 545,043,765.62/28,363.10
  6. Step 6: Final answer
    x = 19,216.65

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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.