Home / 28,135.48-42,209.46-10,605.46

Finding the Fourth Proportional to 28,135.48, 42,209.46 and 10,605.46

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Solution

The fourth proportional to 28,135.48, 42,209.46 and 10,605.46 is: 15,910.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,135.48 : 42,209.46 = 10,605.46 : x
  2. Step 2: Convert to fraction form
    28,135.48/42,209.46 = 10,605.46/x
  3. Step 3: Cross multiply
    28,135.48x = 42,209.46 × 10,605.46
  4. Step 4: Simplify right side
    28,135.48x = 447,650,739.65
  5. Step 5: Solve for x
    x = 447,650,739.65/28,135.48
  6. Step 6: Final answer
    x = 15,910.54

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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.