Home / 28,265.33-42,399.14-10,500.65

Finding the Fourth Proportional to 28,265.33, 42,399.14 and 10,500.65

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Solution

The fourth proportional to 28,265.33, 42,399.14 and 10,500.65 is: 15,751.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,265.33 : 42,399.14 = 10,500.65 : x
  2. Step 2: Convert to fraction form
    28,265.33/42,399.14 = 10,500.65/x
  3. Step 3: Cross multiply
    28,265.33x = 42,399.14 × 10,500.65
  4. Step 4: Simplify right side
    28,265.33x = 445,218,529.44
  5. Step 5: Solve for x
    x = 445,218,529.44/28,265.33
  6. Step 6: Final answer
    x = 15,751.40

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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.