Home / 19,709.63-27,192.15-15,173.69

Finding the Fourth Proportional to 19,709.63, 27,192.15 and 15,173.69

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Solution

The fourth proportional to 19,709.63, 27,192.15 and 15,173.69 is: 20,934.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,709.63 : 27,192.15 = 15,173.69 : x
  2. Step 2: Convert to fraction form
    19,709.63/27,192.15 = 15,173.69/x
  3. Step 3: Cross multiply
    19,709.63x = 27,192.15 × 15,173.69
  4. Step 4: Simplify right side
    19,709.63x = 412,605,118.57
  5. Step 5: Solve for x
    x = 412,605,118.57/19,709.63
  6. Step 6: Final answer
    x = 20,934.19

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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.