Home / 28,402.12-42,599.40-7,627.24

Finding the Fourth Proportional to 28,402.12, 42,599.40 and 7,627.24

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Solution

The fourth proportional to 28,402.12, 42,599.40 and 7,627.24 is: 11,439.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,402.12 : 42,599.40 = 7,627.24 : x
  2. Step 2: Convert to fraction form
    28,402.12/42,599.40 = 7,627.24/x
  3. Step 3: Cross multiply
    28,402.12x = 42,599.40 × 7,627.24
  4. Step 4: Simplify right side
    28,402.12x = 324,915,847.66
  5. Step 5: Solve for x
    x = 324,915,847.66/28,402.12
  6. Step 6: Final answer
    x = 11,439.84

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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.