Home / 27,135.40-40,717.00-12,919.97

Finding the Fourth Proportional to 27,135.40, 40,717.00 and 12,919.97

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Solution

The fourth proportional to 27,135.40, 40,717.00 and 12,919.97 is: 19,386.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,135.40 : 40,717.00 = 12,919.97 : x
  2. Step 2: Convert to fraction form
    27,135.40/40,717.00 = 12,919.97/x
  3. Step 3: Cross multiply
    27,135.40x = 40,717.00 × 12,919.97
  4. Step 4: Simplify right side
    27,135.40x = 526,062,307.40
  5. Step 5: Solve for x
    x = 526,062,307.40/27,135.40
  6. Step 6: Final answer
    x = 19,386.57

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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.