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Finding the Fourth Proportional to 27,488.99, 37,928.49 and 15,549.72

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Solution

The fourth proportional to 27,488.99, 37,928.49 and 15,549.72 is: 21,455.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,488.99 : 37,928.49 = 15,549.72 : x
  2. Step 2: Convert to fraction form
    27,488.99/37,928.49 = 15,549.72/x
  3. Step 3: Cross multiply
    27,488.99x = 37,928.49 × 15,549.72
  4. Step 4: Simplify right side
    27,488.99x = 589,777,399.52
  5. Step 5: Solve for x
    x = 589,777,399.52/27,488.99
  6. Step 6: Final answer
    x = 21,455.04

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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.