Home / 20,956.48-31,434.33-8,476.36

Finding the Fourth Proportional to 20,956.48, 31,434.33 and 8,476.36

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Solution

The fourth proportional to 20,956.48, 31,434.33 and 8,476.36 is: 12,714.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,956.48 : 31,434.33 = 8,476.36 : x
  2. Step 2: Convert to fraction form
    20,956.48/31,434.33 = 8,476.36/x
  3. Step 3: Cross multiply
    20,956.48x = 31,434.33 × 8,476.36
  4. Step 4: Simplify right side
    20,956.48x = 266,448,697.44
  5. Step 5: Solve for x
    x = 266,448,697.44/20,956.48
  6. Step 6: Final answer
    x = 12,714.38

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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.