Home / 28,834.40-39,795.36-18,226.72

Finding the Fourth Proportional to 28,834.40, 39,795.36 and 18,226.72

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Solution

The fourth proportional to 28,834.40, 39,795.36 and 18,226.72 is: 25,155.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,834.40 : 39,795.36 = 18,226.72 : x
  2. Step 2: Convert to fraction form
    28,834.40/39,795.36 = 18,226.72/x
  3. Step 3: Cross multiply
    28,834.40x = 39,795.36 × 18,226.72
  4. Step 4: Simplify right side
    28,834.40x = 725,338,884.02
  5. Step 5: Solve for x
    x = 725,338,884.02/28,834.40
  6. Step 6: Final answer
    x = 25,155.33

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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.