Home / 27,914.16-38,521.10-15,338.64

Finding the Fourth Proportional to 27,914.16, 38,521.10 and 15,338.64

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Solution

The fourth proportional to 27,914.16, 38,521.10 and 15,338.64 is: 21,167.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,914.16 : 38,521.10 = 15,338.64 : x
  2. Step 2: Convert to fraction form
    27,914.16/38,521.10 = 15,338.64/x
  3. Step 3: Cross multiply
    27,914.16x = 38,521.10 × 15,338.64
  4. Step 4: Simplify right side
    27,914.16x = 590,861,285.30
  5. Step 5: Solve for x
    x = 590,861,285.30/27,914.16
  6. Step 6: Final answer
    x = 21,167.08

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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.