Home / 20,854.59-31,283.62-6,814.32

Finding the Fourth Proportional to 20,854.59, 31,283.62 and 6,814.32

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Solution

The fourth proportional to 20,854.59, 31,283.62 and 6,814.32 is: 10,222.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,854.59 : 31,283.62 = 6,814.32 : x
  2. Step 2: Convert to fraction form
    20,854.59/31,283.62 = 6,814.32/x
  3. Step 3: Cross multiply
    20,854.59x = 31,283.62 × 6,814.32
  4. Step 4: Simplify right side
    20,854.59x = 213,176,563.37
  5. Step 5: Solve for x
    x = 213,176,563.37/20,854.59
  6. Step 6: Final answer
    x = 10,222.05

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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.