Home / 27,809.30-38,376.78-15,233.78

Finding the Fourth Proportional to 27,809.30, 38,376.78 and 15,233.78

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Solution

The fourth proportional to 27,809.30, 38,376.78 and 15,233.78 is: 21,022.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,809.30 : 38,376.78 = 15,233.78 : x
  2. Step 2: Convert to fraction form
    27,809.30/38,376.78 = 15,233.78/x
  3. Step 3: Cross multiply
    27,809.30x = 38,376.78 × 15,233.78
  4. Step 4: Simplify right side
    27,809.30x = 584,623,423.63
  5. Step 5: Solve for x
    x = 584,623,423.63/27,809.30
  6. Step 6: Final answer
    x = 21,022.59

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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.