Home / 27,713.34-38,243.34-15,138.09

Finding the Fourth Proportional to 27,713.34, 38,243.34 and 15,138.09

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Solution

The fourth proportional to 27,713.34, 38,243.34 and 15,138.09 is: 20,889.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,713.34 : 38,243.34 = 15,138.09 : x
  2. Step 2: Convert to fraction form
    27,713.34/38,243.34 = 15,138.09/x
  3. Step 3: Cross multiply
    27,713.34x = 38,243.34 × 15,138.09
  4. Step 4: Simplify right side
    27,713.34x = 578,931,122.82
  5. Step 5: Solve for x
    x = 578,931,122.82/27,713.34
  6. Step 6: Final answer
    x = 20,889.98

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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.