Home / 20,317.50-28,044.16-11,823.46

Finding the Fourth Proportional to 20,317.50, 28,044.16 and 11,823.46

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Solution

The fourth proportional to 20,317.50, 28,044.16 and 11,823.46 is: 16,319.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,317.50 : 28,044.16 = 11,823.46 : x
  2. Step 2: Convert to fraction form
    20,317.50/28,044.16 = 11,823.46/x
  3. Step 3: Cross multiply
    20,317.50x = 28,044.16 × 11,823.46
  4. Step 4: Simplify right side
    20,317.50x = 331,579,003.99
  5. Step 5: Solve for x
    x = 331,579,003.99/20,317.50
  6. Step 6: Final answer
    x = 16,319.87

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.