Home / 20,042.26-27,669.45-12,086.50

Finding the Fourth Proportional to 20,042.26, 27,669.45 and 12,086.50

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Solution

The fourth proportional to 20,042.26, 27,669.45 and 12,086.50 is: 16,686.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,042.26 : 27,669.45 = 12,086.50 : x
  2. Step 2: Convert to fraction form
    20,042.26/27,669.45 = 12,086.50/x
  3. Step 3: Cross multiply
    20,042.26x = 27,669.45 × 12,086.50
  4. Step 4: Simplify right side
    20,042.26x = 334,426,807.43
  5. Step 5: Solve for x
    x = 334,426,807.43/20,042.26
  6. Step 6: Final answer
    x = 16,686.08

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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.