Home / 27,554.73-38,025.92-20,643.65

Finding the Fourth Proportional to 27,554.73, 38,025.92 and 20,643.65

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Solution

The fourth proportional to 27,554.73, 38,025.92 and 20,643.65 is: 28,488.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,554.73 : 38,025.92 = 20,643.65 : x
  2. Step 2: Convert to fraction form
    27,554.73/38,025.92 = 20,643.65/x
  3. Step 3: Cross multiply
    27,554.73x = 38,025.92 × 20,643.65
  4. Step 4: Simplify right side
    27,554.73x = 784,993,490.06
  5. Step 5: Solve for x
    x = 784,993,490.06/27,554.73
  6. Step 6: Final answer
    x = 28,488.53

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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.