Home / 20,637.48-28,370.19-17,755.72

Finding the Fourth Proportional to 20,637.48, 28,370.19 and 17,755.72

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Solution

The fourth proportional to 20,637.48, 28,370.19 and 17,755.72 is: 24,408.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,637.48 : 28,370.19 = 17,755.72 : x
  2. Step 2: Convert to fraction form
    20,637.48/28,370.19 = 17,755.72/x
  3. Step 3: Cross multiply
    20,637.48x = 28,370.19 × 17,755.72
  4. Step 4: Simplify right side
    20,637.48x = 503,733,149.99
  5. Step 5: Solve for x
    x = 503,733,149.99/20,637.48
  6. Step 6: Final answer
    x = 24,408.66

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.