Home / 27,954.62-38,577.04-20,816.47

Finding the Fourth Proportional to 27,954.62, 38,577.04 and 20,816.47

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Solution

The fourth proportional to 27,954.62, 38,577.04 and 20,816.47 is: 28,726.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,954.62 : 38,577.04 = 20,816.47 : x
  2. Step 2: Convert to fraction form
    27,954.62/38,577.04 = 20,816.47/x
  3. Step 3: Cross multiply
    27,954.62x = 38,577.04 × 20,816.47
  4. Step 4: Simplify right side
    27,954.62x = 803,037,795.85
  5. Step 5: Solve for x
    x = 803,037,795.85/27,954.62
  6. Step 6: Final answer
    x = 28,726.48

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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.