Home / 27,877.64-38,475.32-17,812.76

Finding the Fourth Proportional to 27,877.64, 38,475.32 and 17,812.76

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Solution

The fourth proportional to 27,877.64, 38,475.32 and 17,812.76 is: 24,584.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,877.64 : 38,475.32 = 17,812.76 : x
  2. Step 2: Convert to fraction form
    27,877.64/38,475.32 = 17,812.76/x
  3. Step 3: Cross multiply
    27,877.64x = 38,475.32 × 17,812.76
  4. Step 4: Simplify right side
    27,877.64x = 685,351,359.64
  5. Step 5: Solve for x
    x = 685,351,359.64/27,877.64
  6. Step 6: Final answer
    x = 24,584.27

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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.