Home / 20,960.64-31,434.48-6,917.52

Finding the Fourth Proportional to 20,960.64, 31,434.48 and 6,917.52

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Solution

The fourth proportional to 20,960.64, 31,434.48 and 6,917.52 is: 10,374.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,960.64 : 31,434.48 = 6,917.52 : x
  2. Step 2: Convert to fraction form
    20,960.64/31,434.48 = 6,917.52/x
  3. Step 3: Cross multiply
    20,960.64x = 31,434.48 × 6,917.52
  4. Step 4: Simplify right side
    20,960.64x = 217,448,644.09
  5. Step 5: Solve for x
    x = 217,448,644.09/20,960.64
  6. Step 6: Final answer
    x = 10,374.14

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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.