Home / 26,126.94-39,153.04-20,877.91

Finding the Fourth Proportional to 26,126.94, 39,153.04 and 20,877.91

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Solution

The fourth proportional to 26,126.94, 39,153.04 and 20,877.91 is: 31,287.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,126.94 : 39,153.04 = 20,877.91 : x
  2. Step 2: Convert to fraction form
    26,126.94/39,153.04 = 20,877.91/x
  3. Step 3: Cross multiply
    26,126.94x = 39,153.04 × 20,877.91
  4. Step 4: Simplify right side
    26,126.94x = 817,433,573.56
  5. Step 5: Solve for x
    x = 817,433,573.56/26,126.94
  6. Step 6: Final answer
    x = 31,287.00

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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.