Home / 27,727.98-38,262.48-15,788.94

Finding the Fourth Proportional to 27,727.98, 38,262.48 and 15,788.94

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Solution

The fourth proportional to 27,727.98, 38,262.48 and 15,788.94 is: 21,787.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,727.98 : 38,262.48 = 15,788.94 : x
  2. Step 2: Convert to fraction form
    27,727.98/38,262.48 = 15,788.94/x
  3. Step 3: Cross multiply
    27,727.98x = 38,262.48 × 15,788.94
  4. Step 4: Simplify right side
    27,727.98x = 604,124,000.97
  5. Step 5: Solve for x
    x = 604,124,000.97/27,727.98
  6. Step 6: Final answer
    x = 21,787.52

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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.