Home / 27,787.41-38,348.82-15,848.01

Finding the Fourth Proportional to 27,787.41, 38,348.82 and 15,848.01

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Solution

The fourth proportional to 27,787.41, 38,348.82 and 15,848.01 is: 21,871.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,787.41 : 38,348.82 = 15,848.01 : x
  2. Step 2: Convert to fraction form
    27,787.41/38,348.82 = 15,848.01/x
  3. Step 3: Cross multiply
    27,787.41x = 38,348.82 × 15,848.01
  4. Step 4: Simplify right side
    27,787.41x = 607,752,482.85
  5. Step 5: Solve for x
    x = 607,752,482.85/27,787.41
  6. Step 6: Final answer
    x = 21,871.51

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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.