Home / 27,957.16-38,579.70-15,381.64

Finding the Fourth Proportional to 27,957.16, 38,579.70 and 15,381.64

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Solution

The fourth proportional to 27,957.16, 38,579.70 and 15,381.64 is: 21,226.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,957.16 : 38,579.70 = 15,381.64 : x
  2. Step 2: Convert to fraction form
    27,957.16/38,579.70 = 15,381.64/x
  3. Step 3: Cross multiply
    27,957.16x = 38,579.70 × 15,381.64
  4. Step 4: Simplify right side
    27,957.16x = 593,419,056.71
  5. Step 5: Solve for x
    x = 593,419,056.71/27,957.16
  6. Step 6: Final answer
    x = 21,226.01

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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.