Home / 28,528.07-39,355.46-18,459.75

Finding the Fourth Proportional to 28,528.07, 39,355.46 and 18,459.75

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Solution

The fourth proportional to 28,528.07, 39,355.46 and 18,459.75 is: 25,465.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,528.07 : 39,355.46 = 18,459.75 : x
  2. Step 2: Convert to fraction form
    28,528.07/39,355.46 = 18,459.75/x
  3. Step 3: Cross multiply
    28,528.07x = 39,355.46 × 18,459.75
  4. Step 4: Simplify right side
    28,528.07x = 726,491,860.44
  5. Step 5: Solve for x
    x = 726,491,860.44/28,528.07
  6. Step 6: Final answer
    x = 25,465.87

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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.