Home / 26,471.04-39,628.80-20,885.28

Finding the Fourth Proportional to 26,471.04, 39,628.80 and 20,885.28

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Solution

The fourth proportional to 26,471.04, 39,628.80 and 20,885.28 is: 31,266.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,471.04 : 39,628.80 = 20,885.28 : x
  2. Step 2: Convert to fraction form
    26,471.04/39,628.80 = 20,885.28/x
  3. Step 3: Cross multiply
    26,471.04x = 39,628.80 × 20,885.28
  4. Step 4: Simplify right side
    26,471.04x = 827,658,584.06
  5. Step 5: Solve for x
    x = 827,658,584.06/26,471.04
  6. Step 6: Final answer
    x = 31,266.57

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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.