Home / 28,029.30-42,043.76-8,307.96

Finding the Fourth Proportional to 28,029.30, 42,043.76 and 8,307.96

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Solution

The fourth proportional to 28,029.30, 42,043.76 and 8,307.96 is: 12,461.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,029.30 : 42,043.76 = 8,307.96 : x
  2. Step 2: Convert to fraction form
    28,029.30/42,043.76 = 8,307.96/x
  3. Step 3: Cross multiply
    28,029.30x = 42,043.76 × 8,307.96
  4. Step 4: Simplify right side
    28,029.30x = 349,297,876.33
  5. Step 5: Solve for x
    x = 349,297,876.33/28,029.30
  6. Step 6: Final answer
    x = 12,461.88

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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.