Home / 23,279.40-32,123.79-12,668.81

Finding the Fourth Proportional to 23,279.40, 32,123.79 and 12,668.81

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Solution

The fourth proportional to 23,279.40, 32,123.79 and 12,668.81 is: 17,481.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    23,279.40 : 32,123.79 = 12,668.81 : x
  2. Step 2: Convert to fraction form
    23,279.40/32,123.79 = 12,668.81/x
  3. Step 3: Cross multiply
    23,279.40x = 32,123.79 × 12,668.81
  4. Step 4: Simplify right side
    23,279.40x = 406,970,031.37
  5. Step 5: Solve for x
    x = 406,970,031.37/23,279.40
  6. Step 6: Final answer
    x = 17,481.98

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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.