Home / 20,712.42-31,064.28-6,673.71

Finding the Fourth Proportional to 20,712.42, 31,064.28 and 6,673.71

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Solution

The fourth proportional to 20,712.42, 31,064.28 and 6,673.71 is: 10,009.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,712.42 : 31,064.28 = 6,673.71 : x
  2. Step 2: Convert to fraction form
    20,712.42/31,064.28 = 6,673.71/x
  3. Step 3: Cross multiply
    20,712.42x = 31,064.28 × 6,673.71
  4. Step 4: Simplify right side
    20,712.42x = 207,313,996.08
  5. Step 5: Solve for x
    x = 207,313,996.08/20,712.42
  6. Step 6: Final answer
    x = 10,009.16

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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.