Home / 20,374.74-30,540.65-11,590.70

Finding the Fourth Proportional to 20,374.74, 30,540.65 and 11,590.70

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Solution

The fourth proportional to 20,374.74, 30,540.65 and 11,590.70 is: 17,373.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,374.74 : 30,540.65 = 11,590.70 : x
  2. Step 2: Convert to fraction form
    20,374.74/30,540.65 = 11,590.70/x
  3. Step 3: Cross multiply
    20,374.74x = 30,540.65 × 11,590.70
  4. Step 4: Simplify right side
    20,374.74x = 353,987,301.30
  5. Step 5: Solve for x
    x = 353,987,301.30/20,374.74
  6. Step 6: Final answer
    x = 17,373.83

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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.