Home / 27,764.26-38,315.20-15,189.28

Finding the Fourth Proportional to 27,764.26, 38,315.20 and 15,189.28

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Solution

The fourth proportional to 27,764.26, 38,315.20 and 15,189.28 is: 20,961.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,764.26 : 38,315.20 = 15,189.28 : x
  2. Step 2: Convert to fraction form
    27,764.26/38,315.20 = 15,189.28/x
  3. Step 3: Cross multiply
    27,764.26x = 38,315.20 × 15,189.28
  4. Step 4: Simplify right side
    27,764.26x = 581,980,301.06
  5. Step 5: Solve for x
    x = 581,980,301.06/27,764.26
  6. Step 6: Final answer
    x = 20,961.49

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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.