Home / 28,219.85-42,326.30-16,380.06

Finding the Fourth Proportional to 28,219.85, 42,326.30 and 16,380.06

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Solution

The fourth proportional to 28,219.85, 42,326.30 and 16,380.06 is: 24,568.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,219.85 : 42,326.30 = 16,380.06 : x
  2. Step 2: Convert to fraction form
    28,219.85/42,326.30 = 16,380.06/x
  3. Step 3: Cross multiply
    28,219.85x = 42,326.30 × 16,380.06
  4. Step 4: Simplify right side
    28,219.85x = 693,307,251.68
  5. Step 5: Solve for x
    x = 693,307,251.68/28,219.85
  6. Step 6: Final answer
    x = 24,568.07

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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.