Home / 31,107.28-42,926.96-16,959.84

Finding the Fourth Proportional to 31,107.28, 42,926.96 and 16,959.84

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Solution

The fourth proportional to 31,107.28, 42,926.96 and 16,959.84 is: 23,403.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,107.28 : 42,926.96 = 16,959.84 : x
  2. Step 2: Convert to fraction form
    31,107.28/42,926.96 = 16,959.84/x
  3. Step 3: Cross multiply
    31,107.28x = 42,926.96 × 16,959.84
  4. Step 4: Simplify right side
    31,107.28x = 728,034,373.29
  5. Step 5: Solve for x
    x = 728,034,373.29/31,107.28
  6. Step 6: Final answer
    x = 23,403.99

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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.