Home / 20,964.60-31,446.90-14,370.80

Finding the Fourth Proportional to 20,964.60, 31,446.90 and 14,370.80

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Solution

The fourth proportional to 20,964.60, 31,446.90 and 14,370.80 is: 21,556.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,964.60 : 31,446.90 = 14,370.80 : x
  2. Step 2: Convert to fraction form
    20,964.60/31,446.90 = 14,370.80/x
  3. Step 3: Cross multiply
    20,964.60x = 31,446.90 × 14,370.80
  4. Step 4: Simplify right side
    20,964.60x = 451,916,953.29
  5. Step 5: Solve for x
    x = 451,916,953.29/20,964.60
  6. Step 6: Final answer
    x = 21,556.19

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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.