Home / 27,042.75-40,536.28-12,981.69

Finding the Fourth Proportional to 27,042.75, 40,536.28 and 12,981.69

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Solution

The fourth proportional to 27,042.75, 40,536.28 and 12,981.69 is: 19,459.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,042.75 : 40,536.28 = 12,981.69 : x
  2. Step 2: Convert to fraction form
    27,042.75/40,536.28 = 12,981.69/x
  3. Step 3: Cross multiply
    27,042.75x = 40,536.28 × 12,981.69
  4. Step 4: Simplify right side
    27,042.75x = 526,229,420.71
  5. Step 5: Solve for x
    x = 526,229,420.71/27,042.75
  6. Step 6: Final answer
    x = 19,459.17

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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.