Home / 19,878.56-27,456.66-14,865.06

Finding the Fourth Proportional to 19,878.56, 27,456.66 and 14,865.06

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Solution

The fourth proportional to 19,878.56, 27,456.66 and 14,865.06 is: 20,531.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,878.56 : 27,456.66 = 14,865.06 : x
  2. Step 2: Convert to fraction form
    19,878.56/27,456.66 = 14,865.06/x
  3. Step 3: Cross multiply
    19,878.56x = 27,456.66 × 14,865.06
  4. Step 4: Simplify right side
    19,878.56x = 408,144,898.30
  5. Step 5: Solve for x
    x = 408,144,898.30/19,878.56
  6. Step 6: Final answer
    x = 20,531.92

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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.