Home / 31,315.05-43,215.12-17,888.10

Finding the Fourth Proportional to 31,315.05, 43,215.12 and 17,888.10

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Solution

The fourth proportional to 31,315.05, 43,215.12 and 17,888.10 is: 24,685.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,315.05 : 43,215.12 = 17,888.10 : x
  2. Step 2: Convert to fraction form
    31,315.05/43,215.12 = 17,888.10/x
  3. Step 3: Cross multiply
    31,315.05x = 43,215.12 × 17,888.10
  4. Step 4: Simplify right side
    31,315.05x = 773,036,388.07
  5. Step 5: Solve for x
    x = 773,036,388.07/31,315.05
  6. Step 6: Final answer
    x = 24,685.78

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