Home / 28,918.99-43,391.04-10,212.40

Finding the Fourth Proportional to 28,918.99, 43,391.04 and 10,212.40

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Solution

The fourth proportional to 28,918.99, 43,391.04 and 10,212.40 is: 15,323.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,918.99 : 43,391.04 = 10,212.40 : x
  2. Step 2: Convert to fraction form
    28,918.99/43,391.04 = 10,212.40/x
  3. Step 3: Cross multiply
    28,918.99x = 43,391.04 × 10,212.40
  4. Step 4: Simplify right side
    28,918.99x = 443,126,656.90
  5. Step 5: Solve for x
    x = 443,126,656.90/28,918.99
  6. Step 6: Final answer
    x = 15,323.03

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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.