Home / 20,934.63-31,402.97-8,453.10

Finding the Fourth Proportional to 20,934.63, 31,402.97 and 8,453.10

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Solution

The fourth proportional to 20,934.63, 31,402.97 and 8,453.10 is: 12,680.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,934.63 : 31,402.97 = 8,453.10 : x
  2. Step 2: Convert to fraction form
    20,934.63/31,402.97 = 8,453.10/x
  3. Step 3: Cross multiply
    20,934.63x = 31,402.97 × 8,453.10
  4. Step 4: Simplify right side
    20,934.63x = 265,452,246.43
  5. Step 5: Solve for x
    x = 265,452,246.43/20,934.63
  6. Step 6: Final answer
    x = 12,680.05

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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.