Home / 27,775.29-38,329.75-15,028.45

Finding the Fourth Proportional to 27,775.29, 38,329.75 and 15,028.45

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Solution

The fourth proportional to 27,775.29, 38,329.75 and 15,028.45 is: 20,739.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,775.29 : 38,329.75 = 15,028.45 : x
  2. Step 2: Convert to fraction form
    27,775.29/38,329.75 = 15,028.45/x
  3. Step 3: Cross multiply
    27,775.29x = 38,329.75 × 15,028.45
  4. Step 4: Simplify right side
    27,775.29x = 576,036,731.39
  5. Step 5: Solve for x
    x = 576,036,731.39/27,775.29
  6. Step 6: Final answer
    x = 20,739.18

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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.