Home / 28,219.68-42,330.12-9,500.28

Finding the Fourth Proportional to 28,219.68, 42,330.12 and 9,500.28

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Solution

The fourth proportional to 28,219.68, 42,330.12 and 9,500.28 is: 14,250.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,219.68 : 42,330.12 = 9,500.28 : x
  2. Step 2: Convert to fraction form
    28,219.68/42,330.12 = 9,500.28/x
  3. Step 3: Cross multiply
    28,219.68x = 42,330.12 × 9,500.28
  4. Step 4: Simplify right side
    28,219.68x = 402,147,992.43
  5. Step 5: Solve for x
    x = 402,147,992.43/28,219.68
  6. Step 6: Final answer
    x = 14,250.62

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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.