Home / 28,110.20-42,165.30-7,333.70

Finding the Fourth Proportional to 28,110.20, 42,165.30 and 7,333.70

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Solution

The fourth proportional to 28,110.20, 42,165.30 and 7,333.70 is: 11,000.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,110.20 : 42,165.30 = 7,333.70 : x
  2. Step 2: Convert to fraction form
    28,110.20/42,165.30 = 7,333.70/x
  3. Step 3: Cross multiply
    28,110.20x = 42,165.30 × 7,333.70
  4. Step 4: Simplify right side
    28,110.20x = 309,227,660.61
  5. Step 5: Solve for x
    x = 309,227,660.61/28,110.20
  6. Step 6: Final answer
    x = 11,000.55

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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.