Home / 28,219.50-42,326.28-8,493.66

Finding the Fourth Proportional to 28,219.50, 42,326.28 and 8,493.66

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Solution

The fourth proportional to 28,219.50, 42,326.28 and 8,493.66 is: 12,739.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,219.50 : 42,326.28 = 8,493.66 : x
  2. Step 2: Convert to fraction form
    28,219.50/42,326.28 = 8,493.66/x
  3. Step 3: Cross multiply
    28,219.50x = 42,326.28 × 8,493.66
  4. Step 4: Simplify right side
    28,219.50x = 359,505,031.38
  5. Step 5: Solve for x
    x = 359,505,031.38/28,219.50
  6. Step 6: Final answer
    x = 12,739.60

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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.