Home / 28,407.20-42,613.94-7,632.32

Finding the Fourth Proportional to 28,407.20, 42,613.94 and 7,632.32

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Solution

The fourth proportional to 28,407.20, 42,613.94 and 7,632.32 is: 11,449.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,407.20 : 42,613.94 = 7,632.32 : x
  2. Step 2: Convert to fraction form
    28,407.20/42,613.94 = 7,632.32/x
  3. Step 3: Cross multiply
    28,407.20x = 42,613.94 × 7,632.32
  4. Step 4: Simplify right side
    28,407.20x = 325,243,226.54
  5. Step 5: Solve for x
    x = 325,243,226.54/28,407.20
  6. Step 6: Final answer
    x = 11,449.32

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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.