Home / 27,787.54-38,346.87-15,213.10

Finding the Fourth Proportional to 27,787.54, 38,346.87 and 15,213.10

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Solution

The fourth proportional to 27,787.54, 38,346.87 and 15,213.10 is: 20,994.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,787.54 : 38,346.87 = 15,213.10 : x
  2. Step 2: Convert to fraction form
    27,787.54/38,346.87 = 15,213.10/x
  3. Step 3: Cross multiply
    27,787.54x = 38,346.87 × 15,213.10
  4. Step 4: Simplify right side
    27,787.54x = 583,374,768.00
  5. Step 5: Solve for x
    x = 583,374,768.00/27,787.54
  6. Step 6: Final answer
    x = 20,994.11

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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.