Home / 28,527.87-39,355.20-18,459.56

Finding the Fourth Proportional to 28,527.87, 39,355.20 and 18,459.56

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Solution

The fourth proportional to 28,527.87, 39,355.20 and 18,459.56 is: 25,465.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,527.87 : 39,355.20 = 18,459.56 : x
  2. Step 2: Convert to fraction form
    28,527.87/39,355.20 = 18,459.56/x
  3. Step 3: Cross multiply
    28,527.87x = 39,355.20 × 18,459.56
  4. Step 4: Simplify right side
    28,527.87x = 726,479,478.94
  5. Step 5: Solve for x
    x = 726,479,478.94/28,527.87
  6. Step 6: Final answer
    x = 25,465.61

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.