Home / 25,751.10-35,531.38-15,672.78

Finding the Fourth Proportional to 25,751.10, 35,531.38 and 15,672.78

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Solution

The fourth proportional to 25,751.10, 35,531.38 and 15,672.78 is: 21,625.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,751.10 : 35,531.38 = 15,672.78 : x
  2. Step 2: Convert to fraction form
    25,751.10/35,531.38 = 15,672.78/x
  3. Step 3: Cross multiply
    25,751.10x = 35,531.38 × 15,672.78
  4. Step 4: Simplify right side
    25,751.10x = 556,875,501.84
  5. Step 5: Solve for x
    x = 556,875,501.84/25,751.10
  6. Step 6: Final answer
    x = 21,625.31

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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.