Home / 26,845.40-40,220.10-12,963.80

Finding the Fourth Proportional to 26,845.40, 40,220.10 and 12,963.80

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Solution

The fourth proportional to 26,845.40, 40,220.10 and 12,963.80 is: 19,422.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,845.40 : 40,220.10 = 12,963.80 : x
  2. Step 2: Convert to fraction form
    26,845.40/40,220.10 = 12,963.80/x
  3. Step 3: Cross multiply
    26,845.40x = 40,220.10 × 12,963.80
  4. Step 4: Simplify right side
    26,845.40x = 521,405,332.38
  5. Step 5: Solve for x
    x = 521,405,332.38/26,845.40
  6. Step 6: Final answer
    x = 19,422.52

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.