Home / 20,503.03-28,301.17-12,747.91

Finding the Fourth Proportional to 20,503.03, 28,301.17 and 12,747.91

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Solution

The fourth proportional to 20,503.03, 28,301.17 and 12,747.91 is: 17,596.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,503.03 : 28,301.17 = 12,747.91 : x
  2. Step 2: Convert to fraction form
    20,503.03/28,301.17 = 12,747.91/x
  3. Step 3: Cross multiply
    20,503.03x = 28,301.17 × 12,747.91
  4. Step 4: Simplify right side
    20,503.03x = 360,780,768.05
  5. Step 5: Solve for x
    x = 360,780,768.05/20,503.03
  6. Step 6: Final answer
    x = 17,596.46

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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.