Home / 27,756.09-38,302.62-15,180.57

Finding the Fourth Proportional to 27,756.09, 38,302.62 and 15,180.57

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Solution

The fourth proportional to 27,756.09, 38,302.62 and 15,180.57 is: 20,948.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,756.09 : 38,302.62 = 15,180.57 : x
  2. Step 2: Convert to fraction form
    27,756.09/38,302.62 = 15,180.57/x
  3. Step 3: Cross multiply
    27,756.09x = 38,302.62 × 15,180.57
  4. Step 4: Simplify right side
    27,756.09x = 581,455,604.09
  5. Step 5: Solve for x
    x = 581,455,604.09/27,756.09
  6. Step 6: Final answer
    x = 20,948.76

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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.