Home / 25,102.70-34,641.78-13,772.30

Finding the Fourth Proportional to 25,102.70, 34,641.78 and 13,772.30

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Solution

The fourth proportional to 25,102.70, 34,641.78 and 13,772.30 is: 19,005.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,102.70 : 34,641.78 = 13,772.30 : x
  2. Step 2: Convert to fraction form
    25,102.70/34,641.78 = 13,772.30/x
  3. Step 3: Cross multiply
    25,102.70x = 34,641.78 × 13,772.30
  4. Step 4: Simplify right side
    25,102.70x = 477,096,986.69
  5. Step 5: Solve for x
    x = 477,096,986.69/25,102.70
  6. Step 6: Final answer
    x = 19,005.80

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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.