Home / 27,206.96-40,806.36-12,971.84

Finding the Fourth Proportional to 27,206.96, 40,806.36 and 12,971.84

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Solution

The fourth proportional to 27,206.96, 40,806.36 and 12,971.84 is: 19,455.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,206.96 : 40,806.36 = 12,971.84 : x
  2. Step 2: Convert to fraction form
    27,206.96/40,806.36 = 12,971.84/x
  3. Step 3: Cross multiply
    27,206.96x = 40,806.36 × 12,971.84
  4. Step 4: Simplify right side
    27,206.96x = 529,333,572.90
  5. Step 5: Solve for x
    x = 529,333,572.90/27,206.96
  6. Step 6: Final answer
    x = 19,455.81

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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.