Home / 27,479.49-37,920.35-15,542.57

Finding the Fourth Proportional to 27,479.49, 37,920.35 and 15,542.57

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Solution

The fourth proportional to 27,479.49, 37,920.35 and 15,542.57 is: 21,447.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,479.49 : 37,920.35 = 15,542.57 : x
  2. Step 2: Convert to fraction form
    27,479.49/37,920.35 = 15,542.57/x
  3. Step 3: Cross multiply
    27,479.49x = 37,920.35 × 15,542.57
  4. Step 4: Simplify right side
    27,479.49x = 589,379,614.65
  5. Step 5: Solve for x
    x = 589,379,614.65/27,479.49
  6. Step 6: Final answer
    x = 21,447.99

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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.