Home / 20,042.98-27,675.66-12,876.45

Finding the Fourth Proportional to 20,042.98, 27,675.66 and 12,876.45

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Solution

The fourth proportional to 20,042.98, 27,675.66 and 12,876.45 is: 17,780.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,042.98 : 27,675.66 = 12,876.45 : x
  2. Step 2: Convert to fraction form
    20,042.98/27,675.66 = 12,876.45/x
  3. Step 3: Cross multiply
    20,042.98x = 27,675.66 × 12,876.45
  4. Step 4: Simplify right side
    20,042.98x = 356,364,252.21
  5. Step 5: Solve for x
    x = 356,364,252.21/20,042.98
  6. Step 6: Final answer
    x = 17,780.00

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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.