Home / 28,320.82-42,478.48-8,599.55

Finding the Fourth Proportional to 28,320.82, 42,478.48 and 8,599.55

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Solution

The fourth proportional to 28,320.82, 42,478.48 and 8,599.55 is: 12,898.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,320.82 : 42,478.48 = 8,599.55 : x
  2. Step 2: Convert to fraction form
    28,320.82/42,478.48 = 8,599.55/x
  3. Step 3: Cross multiply
    28,320.82x = 42,478.48 × 8,599.55
  4. Step 4: Simplify right side
    28,320.82x = 365,295,812.68
  5. Step 5: Solve for x
    x = 365,295,812.68/28,320.82
  6. Step 6: Final answer
    x = 12,898.49

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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.