Home / 27,812.88-38,381.58-15,237.36

Finding the Fourth Proportional to 27,812.88, 38,381.58 and 15,237.36

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Solution

The fourth proportional to 27,812.88, 38,381.58 and 15,237.36 is: 21,027.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,812.88 : 38,381.58 = 15,237.36 : x
  2. Step 2: Convert to fraction form
    27,812.88/38,381.58 = 15,237.36/x
  3. Step 3: Cross multiply
    27,812.88x = 38,381.58 × 15,237.36
  4. Step 4: Simplify right side
    27,812.88x = 584,833,951.83
  5. Step 5: Solve for x
    x = 584,833,951.83/27,812.88
  6. Step 6: Final answer
    x = 21,027.45

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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.