Home / 25,629.40-38,382.54-13,116.52

Finding the Fourth Proportional to 25,629.40, 38,382.54 and 13,116.52

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Solution

The fourth proportional to 25,629.40, 38,382.54 and 13,116.52 is: 19,643.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,629.40 : 38,382.54 = 13,116.52 : x
  2. Step 2: Convert to fraction form
    25,629.40/38,382.54 = 13,116.52/x
  3. Step 3: Cross multiply
    25,629.40x = 38,382.54 × 13,116.52
  4. Step 4: Simplify right side
    25,629.40x = 503,445,353.56
  5. Step 5: Solve for x
    x = 503,445,353.56/25,629.40
  6. Step 6: Final answer
    x = 19,643.28

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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.