Home / 27,803.88-38,369.16-15,228.36

Finding the Fourth Proportional to 27,803.88, 38,369.16 and 15,228.36

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Solution

The fourth proportional to 27,803.88, 38,369.16 and 15,228.36 is: 21,015.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,803.88 : 38,369.16 = 15,228.36 : x
  2. Step 2: Convert to fraction form
    27,803.88/38,369.16 = 15,228.36/x
  3. Step 3: Cross multiply
    27,803.88x = 38,369.16 × 15,228.36
  4. Step 4: Simplify right side
    27,803.88x = 584,299,381.38
  5. Step 5: Solve for x
    x = 584,299,381.38/27,803.88
  6. Step 6: Final answer
    x = 21,015.03

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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.