Home / 31,579-43,578.18-17,431.54

Finding the Fourth Proportional to 31,579, 43,578.18 and 17,431.54

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Solution

The fourth proportional to 31,579, 43,578.18 and 17,431.54 is: 24,055.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,579 : 43,578.18 = 17,431.54 : x
  2. Step 2: Convert to fraction form
    31,579/43,578.18 = 17,431.54/x
  3. Step 3: Cross multiply
    31,579x = 43,578.18 × 17,431.54
  4. Step 4: Simplify right side
    31,579x = 759,634,787.80
  5. Step 5: Solve for x
    x = 759,634,787.80/31,579
  6. Step 6: Final answer
    x = 24,055.06

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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.