Home / 20,184.75-27,859.29-12,737.07

Finding the Fourth Proportional to 20,184.75, 27,859.29 and 12,737.07

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Solution

The fourth proportional to 20,184.75, 27,859.29 and 12,737.07 is: 17,579.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,184.75 : 27,859.29 = 12,737.07 : x
  2. Step 2: Convert to fraction form
    20,184.75/27,859.29 = 12,737.07/x
  3. Step 3: Cross multiply
    20,184.75x = 27,859.29 × 12,737.07
  4. Step 4: Simplify right side
    20,184.75x = 354,845,726.88
  5. Step 5: Solve for x
    x = 354,845,726.88/20,184.75
  6. Step 6: Final answer
    x = 17,579.89

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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.