Home / 19,859.16-27,425.34-15,910.68

Finding the Fourth Proportional to 19,859.16, 27,425.34 and 15,910.68

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Solution

The fourth proportional to 19,859.16, 27,425.34 and 15,910.68 is: 21,972.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,859.16 : 27,425.34 = 15,910.68 : x
  2. Step 2: Convert to fraction form
    19,859.16/27,425.34 = 15,910.68/x
  3. Step 3: Cross multiply
    19,859.16x = 27,425.34 × 15,910.68
  4. Step 4: Simplify right side
    19,859.16x = 436,355,808.63
  5. Step 5: Solve for x
    x = 436,355,808.63/19,859.16
  6. Step 6: Final answer
    x = 21,972.52

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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.