Home / 31,794.58-43,867.54-20,470.63

Finding the Fourth Proportional to 31,794.58, 43,867.54 and 20,470.63

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Solution

The fourth proportional to 31,794.58, 43,867.54 and 20,470.63 is: 28,243.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,794.58 : 43,867.54 = 20,470.63 : x
  2. Step 2: Convert to fraction form
    31,794.58/43,867.54 = 20,470.63/x
  3. Step 3: Cross multiply
    31,794.58x = 43,867.54 × 20,470.63
  4. Step 4: Simplify right side
    31,794.58x = 897,996,301.90
  5. Step 5: Solve for x
    x = 897,996,301.90/31,794.58
  6. Step 6: Final answer
    x = 28,243.69

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.