Home / 20,130.05-27,780.71-11,632.48

Finding the Fourth Proportional to 20,130.05, 27,780.71 and 11,632.48

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Solution

The fourth proportional to 20,130.05, 27,780.71 and 11,632.48 is: 16,053.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,130.05 : 27,780.71 = 11,632.48 : x
  2. Step 2: Convert to fraction form
    20,130.05/27,780.71 = 11,632.48/x
  3. Step 3: Cross multiply
    20,130.05x = 27,780.71 × 11,632.48
  4. Step 4: Simplify right side
    20,130.05x = 323,158,425.85
  5. Step 5: Solve for x
    x = 323,158,425.85/20,130.05
  6. Step 6: Final answer
    x = 16,053.53

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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.