Home / 31,072.89-42,881.90-16,926.51

Finding the Fourth Proportional to 31,072.89, 42,881.90 and 16,926.51

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Solution

The fourth proportional to 31,072.89, 42,881.90 and 16,926.51 is: 23,359.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,072.89 : 42,881.90 = 16,926.51 : x
  2. Step 2: Convert to fraction form
    31,072.89/42,881.90 = 16,926.51/x
  3. Step 3: Cross multiply
    31,072.89x = 42,881.90 × 16,926.51
  4. Step 4: Simplify right side
    31,072.89x = 725,840,824.54
  5. Step 5: Solve for x
    x = 725,840,824.54/31,072.89
  6. Step 6: Final answer
    x = 23,359.30

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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.