Home / 20,744.03-31,112.63-8,899.72

Finding the Fourth Proportional to 20,744.03, 31,112.63 and 8,899.72

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Solution

The fourth proportional to 20,744.03, 31,112.63 and 8,899.72 is: 13,348.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,744.03 : 31,112.63 = 8,899.72 : x
  2. Step 2: Convert to fraction form
    20,744.03/31,112.63 = 8,899.72/x
  3. Step 3: Cross multiply
    20,744.03x = 31,112.63 × 8,899.72
  4. Step 4: Simplify right side
    20,744.03x = 276,893,495.40
  5. Step 5: Solve for x
    x = 276,893,495.40/20,744.03
  6. Step 6: Final answer
    x = 13,348.11

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1.5x scale

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.