Home / 20,513.78-28,292.91-14,849.36

Finding the Fourth Proportional to 20,513.78, 28,292.91 and 14,849.36

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Solution

The fourth proportional to 20,513.78, 28,292.91 and 14,849.36 is: 20,480.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,513.78 : 28,292.91 = 14,849.36 : x
  2. Step 2: Convert to fraction form
    20,513.78/28,292.91 = 14,849.36/x
  3. Step 3: Cross multiply
    20,513.78x = 28,292.91 × 14,849.36
  4. Step 4: Simplify right side
    20,513.78x = 420,131,606.04
  5. Step 5: Solve for x
    x = 420,131,606.04/20,513.78
  6. Step 6: Final answer
    x = 20,480.46

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.