Home / 31,014.87-42,799.26-16,867.71

Finding the Fourth Proportional to 31,014.87, 42,799.26 and 16,867.71

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Solution

The fourth proportional to 31,014.87, 42,799.26 and 16,867.71 is: 23,276.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,014.87 : 42,799.26 = 16,867.71 : x
  2. Step 2: Convert to fraction form
    31,014.87/42,799.26 = 16,867.71/x
  3. Step 3: Cross multiply
    31,014.87x = 42,799.26 × 16,867.71
  4. Step 4: Simplify right side
    31,014.87x = 721,925,505.89
  5. Step 5: Solve for x
    x = 721,925,505.89/31,014.87
  6. Step 6: Final answer
    x = 23,276.75

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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.