Home / 27,812.34-38,381.99-15,237.09

Finding the Fourth Proportional to 27,812.34, 38,381.99 and 15,237.09

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Solution

The fourth proportional to 27,812.34, 38,381.99 and 15,237.09 is: 21,027.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,812.34 : 38,381.99 = 15,237.09 : x
  2. Step 2: Convert to fraction form
    27,812.34/38,381.99 = 15,237.09/x
  3. Step 3: Cross multiply
    27,812.34x = 38,381.99 × 15,237.09
  4. Step 4: Simplify right side
    27,812.34x = 584,829,759.82
  5. Step 5: Solve for x
    x = 584,829,759.82/27,812.34
  6. Step 6: Final answer
    x = 21,027.71

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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.