Home / 15,844.35-21,875.90-14,160.36

Finding the Fourth Proportional to 15,844.35, 21,875.90 and 14,160.36

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Solution

The fourth proportional to 15,844.35, 21,875.90 and 14,160.36 is: 19,550.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,844.35 : 21,875.90 = 14,160.36 : x
  2. Step 2: Convert to fraction form
    15,844.35/21,875.90 = 14,160.36/x
  3. Step 3: Cross multiply
    15,844.35x = 21,875.90 × 14,160.36
  4. Step 4: Simplify right side
    15,844.35x = 309,770,548.52
  5. Step 5: Solve for x
    x = 309,770,548.52/15,844.35
  6. Step 6: Final answer
    x = 19,550.85

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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.