Home / 27,376.97-37,780.16-15,440.27

Finding the Fourth Proportional to 27,376.97, 37,780.16 and 15,440.27

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Solution

The fourth proportional to 27,376.97, 37,780.16 and 15,440.27 is: 21,307.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,376.97 : 37,780.16 = 15,440.27 : x
  2. Step 2: Convert to fraction form
    27,376.97/37,780.16 = 15,440.27/x
  3. Step 3: Cross multiply
    27,376.97x = 37,780.16 × 15,440.27
  4. Step 4: Simplify right side
    27,376.97x = 583,335,815.19
  5. Step 5: Solve for x
    x = 583,335,815.19/27,376.97
  6. Step 6: Final answer
    x = 21,307.54

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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.