Home / 28,655.10-42,998.34-11,125.62

Finding the Fourth Proportional to 28,655.10, 42,998.34 and 11,125.62

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Solution

The fourth proportional to 28,655.10, 42,998.34 and 11,125.62 is: 16,694.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,655.10 : 42,998.34 = 11,125.62 : x
  2. Step 2: Convert to fraction form
    28,655.10/42,998.34 = 11,125.62/x
  3. Step 3: Cross multiply
    28,655.10x = 42,998.34 × 11,125.62
  4. Step 4: Simplify right side
    28,655.10x = 478,383,191.47
  5. Step 5: Solve for x
    x = 478,383,191.47/28,655.10
  6. Step 6: Final answer
    x = 16,694.52

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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.