Home / 19,725.72-27,188.97-13,985.04

Finding the Fourth Proportional to 19,725.72, 27,188.97 and 13,985.04

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Solution

The fourth proportional to 19,725.72, 27,188.97 and 13,985.04 is: 19,276.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,725.72 : 27,188.97 = 13,985.04 : x
  2. Step 2: Convert to fraction form
    19,725.72/27,188.97 = 13,985.04/x
  3. Step 3: Cross multiply
    19,725.72x = 27,188.97 × 13,985.04
  4. Step 4: Simplify right side
    19,725.72x = 380,238,833.01
  5. Step 5: Solve for x
    x = 380,238,833.01/19,725.72
  6. Step 6: Final answer
    x = 19,276.30

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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.