Home / 28,229.20-38,958-16,133.48

Finding the Fourth Proportional to 28,229.20, 38,958 and 16,133.48

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Solution

The fourth proportional to 28,229.20, 38,958 and 16,133.48 is: 22,265.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,229.20 : 38,958 = 16,133.48 : x
  2. Step 2: Convert to fraction form
    28,229.20/38,958 = 16,133.48/x
  3. Step 3: Cross multiply
    28,229.20x = 38,958 × 16,133.48
  4. Step 4: Simplify right side
    28,229.20x = 628,528,113.84
  5. Step 5: Solve for x
    x = 628,528,113.84/28,229.20
  6. Step 6: Final answer
    x = 22,265.18

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.