Home / 25,933.58-38,863.56-19,988

Finding the Fourth Proportional to 25,933.58, 38,863.56 and 19,988

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Solution

The fourth proportional to 25,933.58, 38,863.56 and 19,988 is: 29,953.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,933.58 : 38,863.56 = 19,988 : x
  2. Step 2: Convert to fraction form
    25,933.58/38,863.56 = 19,988/x
  3. Step 3: Cross multiply
    25,933.58x = 38,863.56 × 19,988
  4. Step 4: Simplify right side
    25,933.58x = 776,804,837.28
  5. Step 5: Solve for x
    x = 776,804,837.28/25,933.58
  6. Step 6: Final answer
    x = 29,953.63

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.