Home / 27,742.05-38,283.12-15,166.80

Finding the Fourth Proportional to 27,742.05, 38,283.12 and 15,166.80

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Solution

The fourth proportional to 27,742.05, 38,283.12 and 15,166.80 is: 20,929.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,742.05 : 38,283.12 = 15,166.80 : x
  2. Step 2: Convert to fraction form
    27,742.05/38,283.12 = 15,166.80/x
  3. Step 3: Cross multiply
    27,742.05x = 38,283.12 × 15,166.80
  4. Step 4: Simplify right side
    27,742.05x = 580,632,424.42
  5. Step 5: Solve for x
    x = 580,632,424.42/27,742.05
  6. Step 6: Final answer
    x = 20,929.69

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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.