Home / 27,764.37-38,315.16-15,189.12

Finding the Fourth Proportional to 27,764.37, 38,315.16 and 15,189.12

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Solution

The fourth proportional to 27,764.37, 38,315.16 and 15,189.12 is: 20,961.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,764.37 : 38,315.16 = 15,189.12 : x
  2. Step 2: Convert to fraction form
    27,764.37/38,315.16 = 15,189.12/x
  3. Step 3: Cross multiply
    27,764.37x = 38,315.16 × 15,189.12
  4. Step 4: Simplify right side
    27,764.37x = 581,973,563.06
  5. Step 5: Solve for x
    x = 581,973,563.06/27,764.37
  6. Step 6: Final answer
    x = 20,961.17

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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.