Home / 28,987.75-43,501.11-10,519.75

Finding the Fourth Proportional to 28,987.75, 43,501.11 and 10,519.75

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Solution

The fourth proportional to 28,987.75, 43,501.11 and 10,519.75 is: 15,786.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,987.75 : 43,501.11 = 10,519.75 : x
  2. Step 2: Convert to fraction form
    28,987.75/43,501.11 = 10,519.75/x
  3. Step 3: Cross multiply
    28,987.75x = 43,501.11 × 10,519.75
  4. Step 4: Simplify right side
    28,987.75x = 457,620,801.92
  5. Step 5: Solve for x
    x = 457,620,801.92/28,987.75
  6. Step 6: Final answer
    x = 15,786.70

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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.