Home / 28,165.75-42,290.16-15,710.11

Finding the Fourth Proportional to 28,165.75, 42,290.16 and 15,710.11

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Solution

The fourth proportional to 28,165.75, 42,290.16 and 15,710.11 is: 23,588.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,165.75 : 42,290.16 = 15,710.11 : x
  2. Step 2: Convert to fraction form
    28,165.75/42,290.16 = 15,710.11/x
  3. Step 3: Cross multiply
    28,165.75x = 42,290.16 × 15,710.11
  4. Step 4: Simplify right side
    28,165.75x = 664,383,065.52
  5. Step 5: Solve for x
    x = 664,383,065.52/28,165.75
  6. Step 6: Final answer
    x = 23,588.33

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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.