Home / 28,220.28-42,326.96-16,380.51

Finding the Fourth Proportional to 28,220.28, 42,326.96 and 16,380.51

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Solution

The fourth proportional to 28,220.28, 42,326.96 and 16,380.51 is: 24,568.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,220.28 : 42,326.96 = 16,380.51 : x
  2. Step 2: Convert to fraction form
    28,220.28/42,326.96 = 16,380.51/x
  3. Step 3: Cross multiply
    28,220.28x = 42,326.96 × 16,380.51
  4. Step 4: Simplify right side
    28,220.28x = 693,337,191.55
  5. Step 5: Solve for x
    x = 693,337,191.55/28,220.28
  6. Step 6: Final answer
    x = 24,568.76

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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.