Home / 20,542.13-28,348.08-11,110.63

Finding the Fourth Proportional to 20,542.13, 28,348.08 and 11,110.63

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Solution

The fourth proportional to 20,542.13, 28,348.08 and 11,110.63 is: 15,332.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,542.13 : 28,348.08 = 11,110.63 : x
  2. Step 2: Convert to fraction form
    20,542.13/28,348.08 = 11,110.63/x
  3. Step 3: Cross multiply
    20,542.13x = 28,348.08 × 11,110.63
  4. Step 4: Simplify right side
    20,542.13x = 314,965,028.09
  5. Step 5: Solve for x
    x = 314,965,028.09/20,542.13
  6. Step 6: Final answer
    x = 15,332.64

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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.