Home / 27,964.64-38,591.12-15,389.38

Finding the Fourth Proportional to 27,964.64, 38,591.12 and 15,389.38

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Solution

The fourth proportional to 27,964.64, 38,591.12 and 15,389.38 is: 21,237.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,964.64 : 38,591.12 = 15,389.38 : x
  2. Step 2: Convert to fraction form
    27,964.64/38,591.12 = 15,389.38/x
  3. Step 3: Cross multiply
    27,964.64x = 38,591.12 × 15,389.38
  4. Step 4: Simplify right side
    27,964.64x = 593,893,410.31
  5. Step 5: Solve for x
    x = 593,893,410.31/27,964.64
  6. Step 6: Final answer
    x = 21,237.30

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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.