Home / 28,409.28-42,614.04-7,632.72

Finding the Fourth Proportional to 28,409.28, 42,614.04 and 7,632.72

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Solution

The fourth proportional to 28,409.28, 42,614.04 and 7,632.72 is: 11,449.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,409.28 : 42,614.04 = 7,632.72 : x
  2. Step 2: Convert to fraction form
    28,409.28/42,614.04 = 7,632.72/x
  3. Step 3: Cross multiply
    28,409.28x = 42,614.04 × 7,632.72
  4. Step 4: Simplify right side
    28,409.28x = 325,261,035.39
  5. Step 5: Solve for x
    x = 325,261,035.39/28,409.28
  6. Step 6: Final answer
    x = 11,449.11

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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.