Home / 25,205.78-34,784.76-13,874.66

Finding the Fourth Proportional to 25,205.78, 34,784.76 and 13,874.66

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Solution

The fourth proportional to 25,205.78, 34,784.76 and 13,874.66 is: 19,147.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,205.78 : 34,784.76 = 13,874.66 : x
  2. Step 2: Convert to fraction form
    25,205.78/34,784.76 = 13,874.66/x
  3. Step 3: Cross multiply
    25,205.78x = 34,784.76 × 13,874.66
  4. Step 4: Simplify right side
    25,205.78x = 482,626,718.18
  5. Step 5: Solve for x
    x = 482,626,718.18/25,205.78
  6. Step 6: Final answer
    x = 19,147.46

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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.