Home / 27,764.52-38,315.34-15,189

Finding the Fourth Proportional to 27,764.52, 38,315.34 and 15,189

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Solution

The fourth proportional to 27,764.52, 38,315.34 and 15,189 is: 20,960.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,764.52 : 38,315.34 = 15,189 : x
  2. Step 2: Convert to fraction form
    27,764.52/38,315.34 = 15,189/x
  3. Step 3: Cross multiply
    27,764.52x = 38,315.34 × 15,189
  4. Step 4: Simplify right side
    27,764.52x = 581,971,699.26
  5. Step 5: Solve for x
    x = 581,971,699.26/27,764.52
  6. Step 6: Final answer
    x = 20,960.99

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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.