Home / 28,453.86-42,710.85-15,984.54

Finding the Fourth Proportional to 28,453.86, 42,710.85 and 15,984.54

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Solution

The fourth proportional to 28,453.86, 42,710.85 and 15,984.54 is: 23,993.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,453.86 : 42,710.85 = 15,984.54 : x
  2. Step 2: Convert to fraction form
    28,453.86/42,710.85 = 15,984.54/x
  3. Step 3: Cross multiply
    28,453.86x = 42,710.85 × 15,984.54
  4. Step 4: Simplify right side
    28,453.86x = 682,713,290.26
  5. Step 5: Solve for x
    x = 682,713,290.26/28,453.86
  6. Step 6: Final answer
    x = 23,993.70

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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.