Home / 20,873.16-31,287.06-9,772.92

Finding the Fourth Proportional to 20,873.16, 31,287.06 and 9,772.92

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Solution

The fourth proportional to 20,873.16, 31,287.06 and 9,772.92 is: 14,648.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,873.16 : 31,287.06 = 9,772.92 : x
  2. Step 2: Convert to fraction form
    20,873.16/31,287.06 = 9,772.92/x
  3. Step 3: Cross multiply
    20,873.16x = 31,287.06 × 9,772.92
  4. Step 4: Simplify right side
    20,873.16x = 305,765,934.42
  5. Step 5: Solve for x
    x = 305,765,934.42/20,873.16
  6. Step 6: Final answer
    x = 14,648.76

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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.