Home / 25,347.71-34,976.40-15,914.45

Finding the Fourth Proportional to 25,347.71, 34,976.40 and 15,914.45

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Solution

The fourth proportional to 25,347.71, 34,976.40 and 15,914.45 is: 21,959.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,347.71 : 34,976.40 = 15,914.45 : x
  2. Step 2: Convert to fraction form
    25,347.71/34,976.40 = 15,914.45/x
  3. Step 3: Cross multiply
    25,347.71x = 34,976.40 × 15,914.45
  4. Step 4: Simplify right side
    25,347.71x = 556,629,994.10
  5. Step 5: Solve for x
    x = 556,629,994.10/25,347.71
  6. Step 6: Final answer
    x = 21,959.78

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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.