Home / 25,732.90-35,511.78-15,661.78

Finding the Fourth Proportional to 25,732.90, 35,511.78 and 15,661.78

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Solution

The fourth proportional to 25,732.90, 35,511.78 and 15,661.78 is: 21,613.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,732.90 : 35,511.78 = 15,661.78 : x
  2. Step 2: Convert to fraction form
    25,732.90/35,511.78 = 15,661.78/x
  3. Step 3: Cross multiply
    25,732.90x = 35,511.78 × 15,661.78
  4. Step 4: Simplify right side
    25,732.90x = 556,177,685.77
  5. Step 5: Solve for x
    x = 556,177,685.77/25,732.90
  6. Step 6: Final answer
    x = 21,613.49

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1.5x scale

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.