Home / 21,110.04-31,676.00-15,314.49

Finding the Fourth Proportional to 21,110.04, 31,676.00 and 15,314.49

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Solution

The fourth proportional to 21,110.04, 31,676.00 and 15,314.49 is: 22,979.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,110.04 : 31,676.00 = 15,314.49 : x
  2. Step 2: Convert to fraction form
    21,110.04/31,676.00 = 15,314.49/x
  3. Step 3: Cross multiply
    21,110.04x = 31,676.00 × 15,314.49
  4. Step 4: Simplify right side
    21,110.04x = 485,101,708.67
  5. Step 5: Solve for x
    x = 485,101,708.67/21,110.04
  6. Step 6: Final answer
    x = 22,979.67

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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.