Home / 27,101.80-40,648.60-7,381.91

Finding the Fourth Proportional to 27,101.80, 40,648.60 and 7,381.91

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Solution

The fourth proportional to 27,101.80, 40,648.60 and 7,381.91 is: 11,071.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,101.80 : 40,648.60 = 7,381.91 : x
  2. Step 2: Convert to fraction form
    27,101.80/40,648.60 = 7,381.91/x
  3. Step 3: Cross multiply
    27,101.80x = 40,648.60 × 7,381.91
  4. Step 4: Simplify right side
    27,101.80x = 300,064,417.67
  5. Step 5: Solve for x
    x = 300,064,417.67/27,101.80
  6. Step 6: Final answer
    x = 11,071.75

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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.